Remove unused (by clients) SkUnitMapper (https://codereview.chromium.org/283273002/)

This reverts commit dd50c83b5b34dab3a077741861b50ed1f2bc6b8f.

BUG=skia:
R=scroggo@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/288343009

git-svn-id: http://skia.googlecode.com/svn/trunk@14830 2bbb7eff-a529-9590-31e7-b0007b416f81

9 files changed, 44 insertions, 257 deletions

diff --git a/samplecode/SampleAll.cpp b/samplecode/SampleAll.cpp
index ea1f143288..92fe258dd6 100644
--- a/samplecode/SampleAll.cpp
+++ b/samplecode/SampleAll.cpp
@@ -36,7 +36,6 @@
 #include "SkRandom.h"
 #include "SkTransparentShader.h"
 #include "SkTypeface.h"
-#include "SkUnitMappers.h"
 #include "SkUtils.h"
 #include "SkXfermode.h"
 
@@ -368,10 +367,8 @@ protected:
         SkScalar* linearPos = NULL;
         int linearCount = 2;
         SkShader::TileMode linearMode = SkShader::kMirror_TileMode;
-        SkUnitMapper* linearMapper = new SkDiscreteMapper(3);
-        SkAutoUnref unmapLinearMapper(linearMapper);
         SkShader* linear = SkGradientShader::CreateLinear(linearPoints,
-            linearColors, linearPos, linearCount, linearMode, linearMapper);
+            linearColors, linearPos, linearCount, linearMode);
 
         SkPoint radialCenter = { SkIntToScalar(25), SkIntToScalar(25) };
         SkScalar radialRadius = SkIntToScalar(25);
@@ -379,11 +376,9 @@ protected:
         SkScalar radialPos[] = { 0, SkIntToScalar(3) / 5, SkIntToScalar(1)};
         int radialCount = 3;
         SkShader::TileMode radialMode = SkShader::kRepeat_TileMode;
-        SkUnitMapper* radialMapper = new SkCosineMapper();
-        SkAutoUnref unmapRadialMapper(radialMapper);
         SkShader* radial = SkGradientShader::CreateRadial(radialCenter,
             radialRadius, radialColors, radialPos, radialCount,
-            radialMode, radialMapper);
+            radialMode);
 
         SkTransparentShader* transparentShader = new SkTransparentShader();
         SkEmbossMaskFilter::Light light;
diff --git a/samplecode/SampleGradients.cpp b/samplecode/SampleGradients.cpp
index fead71473f..f328d761a5 100644
--- a/samplecode/SampleGradients.cpp
+++ b/samplecode/SampleGradients.cpp
@@ -13,8 +13,7 @@
 static SkShader* setgrad(const SkRect& r, SkColor c0, SkColor c1) {
     SkColor colors[] = { c0, c1 };
     SkPoint pts[] = { { r.fLeft, r.fTop }, { r.fRight, r.fTop } };
-    return SkGradientShader::CreateLinear(pts, colors, NULL, 2,
-                                          SkShader::kClamp_TileMode, NULL);
+    return SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkShader::kClamp_TileMode);
 }
 
 static void test_alphagradients(SkCanvas* canvas) {
@@ -64,32 +63,26 @@ static const GradData gGradData[] = {
     { 5, gColors, gPos2 }
 };
 
-static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data,
-                            SkShader::TileMode tm, SkUnitMapper* mapper) {
-    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos,
-                                          data.fCount, tm, mapper);
+static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
+    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data,
-                            SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center;
     center.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
     return SkGradientShader::CreateRadial(center, center.fX, data.fColors,
-                                          data.fPos, data.fCount, tm, mapper);
+                                          data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data,
-                           SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center;
     center.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
-    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors,
-                                         data.fPos, data.fCount, mapper);
+    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, data.fPos, data.fCount);
 }
 
-static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data,
-                           SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center0, center1;
     center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
                 SkScalarAve(pts[0].fY, pts[1].fY));
@@ -98,22 +91,22 @@ static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data,
     return SkGradientShader::CreateTwoPointRadial(
                             center1, (pts[1].fX - pts[0].fX) / 7,
                             center0, (pts[1].fX - pts[0].fX) / 2,
-                            data.fColors, data.fPos, data.fCount, tm, mapper);
+                            data.fColors, data.fPos, data.fCount, tm);
 }
 
 static SkShader* Make2RadialConcentric(const SkPoint pts[2], const GradData& data,
-                                       SkShader::TileMode tm, SkUnitMapper* mapper) {
+                                       SkShader::TileMode tm) {
     SkPoint center;
     center.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
     return SkGradientShader::CreateTwoPointRadial(
                             center, (pts[1].fX - pts[0].fX) / 7,
                             center, (pts[1].fX - pts[0].fX) / 2,
-                            data.fColors, data.fPos, data.fCount, tm, mapper);
+                            data.fColors, data.fPos, data.fCount, tm);
 }
 
-typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data,
-                     SkShader::TileMode tm, SkUnitMapper* mapper);
+typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm);
+
 static const GradMaker gGradMakers[] = {
     MakeLinear, MakeRadial, MakeSweep, Make2Radial, Make2RadialConcentric
 };
@@ -154,7 +147,7 @@ protected:
                 canvas->save();
                 for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
                     SkShader* shader;
-                    shader = gGradMakers[j](pts, gGradData[i], (SkShader::TileMode)tm, NULL);
+                    shader = gGradMakers[j](pts, gGradData[i], (SkShader::TileMode)tm);
                     paint.setShader(shader)->unref();
                     canvas->drawRect(r, paint);
                     canvas->translate(0, SkIntToScalar(120));
diff --git a/samplecode/SampleLayers.cpp b/samplecode/SampleLayers.cpp
index 51f02a1ade..43f5d4236a 100644
--- a/samplecode/SampleLayers.cpp
+++ b/samplecode/SampleLayers.cpp
@@ -31,7 +31,7 @@ static void make_paint(SkPaint* paint, const SkMatrix& localMatrix) {
     SkColor colors[] = { 0, SK_ColorWHITE };
     SkPoint pts[] = { { 0, 0 }, { 0, SK_Scalar1*20 } };
     SkShader* s = SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkShader::kClamp_TileMode,
-                                                 NULL, 0, &localMatrix);
+                                                 0, &localMatrix);
 
     paint->setShader(s)->unref();
     paint->setXfermodeMode(SkXfermode::kDstIn_Mode);
diff --git a/samplecode/SamplePatch.cpp b/samplecode/SamplePatch.cpp
index 09eb42f6aa..fe94bbfd52 100644
--- a/samplecode/SamplePatch.cpp
+++ b/samplecode/SamplePatch.cpp
@@ -42,7 +42,7 @@ static SkShader* make_shader1(const SkIPoint& size) {
                       { SkIntToScalar(size.fX), SkIntToScalar(size.fY) } };
     SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorRED };
     return SkGradientShader::CreateLinear(pts, colors, NULL,
-                    SK_ARRAY_COUNT(colors), SkShader::kMirror_TileMode, NULL);
+                    SK_ARRAY_COUNT(colors), SkShader::kMirror_TileMode);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/samplecode/SampleShaderText.cpp b/samplecode/SampleShaderText.cpp
index c7048ab401..6f23a0b6b3 100644
--- a/samplecode/SampleShaderText.cpp
+++ b/samplecode/SampleShaderText.cpp
@@ -1,15 +1,14 @@
-
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
 #include "SkGradientShader.h"
-#include "SkUnitMappers.h"
 
 static void makebm(SkBitmap* bm, int w, int h) {
     bm->allocN32Pixels(w, h);
@@ -22,15 +21,9 @@ static void makebm(SkBitmap* bm, int w, int h) {
     SkScalar    pos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
     SkPaint     paint;
 
-    SkUnitMapper*   um = NULL;
-
-    um = new SkCosineMapper;
-
-    SkAutoUnref au(um);
-
     paint.setDither(true);
     paint.setShader(SkGradientShader::CreateLinear(pts, colors, pos,
-                SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode, um))->unref();
+                                    SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode))->unref();
     canvas.drawPaint(paint);
 }
 
@@ -60,32 +53,26 @@ static const GradData gGradData[] = {
     { 5, gColors, NULL },
 };
 
-static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data,
-                            SkShader::TileMode tm, SkUnitMapper* mapper) {
-    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos,
-                                          data.fCount, tm, mapper);
+static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
+    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data,
-                            SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center;
     center.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
     return SkGradientShader::CreateRadial(center, center.fX, data.fColors,
-                                          data.fPos, data.fCount, tm, mapper);
+                                          data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data,
-                           SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center;
     center.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
-    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors,
-                                         data.fPos, data.fCount, mapper);
+    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, data.fPos, data.fCount);
 }
 
-static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data,
-                           SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center0, center1;
     center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
                 SkScalarAve(pts[0].fY, pts[1].fY));
@@ -94,11 +81,11 @@ static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data,
     return SkGradientShader::CreateTwoPointRadial(
                             center1, (pts[1].fX - pts[0].fX) / 7,
                             center0, (pts[1].fX - pts[0].fX) / 2,
-                            data.fColors, data.fPos, data.fCount, tm, mapper);
+                            data.fColors, data.fPos, data.fCount, tm);
 }
 
-typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data,
-                     SkShader::TileMode tm, SkUnitMapper* mapper);
+typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm);
+
 static const GradMaker gGradMakers[] = {
     MakeLinear, MakeRadial, MakeSweep, Make2Radial
 };
@@ -152,8 +139,7 @@ protected:
             for (size_t m = 0; m < SK_ARRAY_COUNT(gGradMakers); ++m) {
                 shaders[shdIdx++] = gGradMakers[m](pts,
                                                    gGradData[d],
-                                                   SkShader::kClamp_TileMode,
-                                                   NULL);
+                                                   SkShader::kClamp_TileMode);
             }
         }
         for (size_t tx = 0; tx < SK_ARRAY_COUNT(tileModes); ++tx) {
diff --git a/samplecode/SampleSlides.cpp b/samplecode/SampleSlides.cpp
index d828ae601f..6bc9a28fd3 100644
--- a/samplecode/SampleSlides.cpp
+++ b/samplecode/SampleSlides.cpp
@@ -178,32 +178,26 @@ static const GradData gGradData[] = {
 { 5, gColors, gPos2 }
 };
 
-static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data,
-                            SkShader::TileMode tm, SkUnitMapper* mapper) {
-    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos,
-                                          data.fCount, tm, mapper);
+static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
+    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data,
-                            SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center;
     center.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
     return SkGradientShader::CreateRadial(center, center.fX, data.fColors,
-                                          data.fPos, data.fCount, tm, mapper);
+                                          data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data,
-                           SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center;
     center.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
-    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors,
-                                         data.fPos, data.fCount, mapper);
+    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, data.fPos, data.fCount);
 }
 
-static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data,
-                             SkShader::TileMode tm, SkUnitMapper* mapper) {
+static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
     SkPoint center0, center1;
     center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
                 SkScalarAve(pts[0].fY, pts[1].fY));
@@ -212,11 +206,10 @@ static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data,
     return SkGradientShader::CreateTwoPointRadial(
                                                   center1, (pts[1].fX - pts[0].fX) / 7,
                                                   center0, (pts[1].fX - pts[0].fX) / 2,
-                                                  data.fColors, data.fPos, data.fCount, tm, mapper);
+                                                  data.fColors, data.fPos, data.fCount, tm);
 }
 
-typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data,
-                               SkShader::TileMode tm, SkUnitMapper* mapper);
+typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm);
 static const GradMaker gGradMakers[] = {
     MakeLinear, MakeRadial, MakeSweep, Make2Radial
 };
@@ -236,7 +229,7 @@ static void gradient_slide(SkCanvas* canvas) {
     for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
         canvas->save();
         for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
-            SkShader* shader = gGradMakers[j](pts, gGradData[i], tm, NULL);
+            SkShader* shader = gGradMakers[j](pts, gGradData[i], tm);
             paint.setShader(shader);
             canvas->drawRect(r, paint);
             shader->unref();
@@ -335,7 +328,7 @@ static SkShader* make_shader1(const SkIPoint& size) {
                       { SkIntToScalar(size.fX), SkIntToScalar(size.fY) } };
     SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorRED };
     return SkGradientShader::CreateLinear(pts, colors, NULL,
-                                          SK_ARRAY_COUNT(colors), SkShader::kMirror_TileMode, NULL);
+                                          SK_ARRAY_COUNT(colors), SkShader::kMirror_TileMode);
 }
 
 class Rec {
diff --git a/samplecode/SampleTiling.cpp b/samplecode/SampleTiling.cpp
index cc3b52915d..a59a8021b6 100644
--- a/samplecode/SampleTiling.cpp
+++ b/samplecode/SampleTiling.cpp
@@ -21,7 +21,6 @@
 
 // effects
 #include "SkGradientShader.h"
-#include "SkUnitMappers.h"
 #include "SkBlurMask.h"
 #include "SkBlurDrawLooper.h"
 
@@ -35,16 +34,9 @@ static void makebm(SkBitmap* bm, SkColorType ct, int w, int h) {
     SkScalar    pos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
     SkPaint     paint;
 
-    SkUnitMapper*   um = NULL;
-
-    um = new SkCosineMapper;
-//    um = new SkDiscreteMapper(12);
-
-    SkAutoUnref au(um);
-
     paint.setDither(true);
     paint.setShader(SkGradientShader::CreateLinear(pts, colors, pos,
-                SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode, um))->unref();
+                SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode))->unref();
     canvas.drawPaint(paint);
 }
 
diff --git a/samplecode/SampleUnitMapper.cpp b/samplecode/SampleUnitMapper.cpp
deleted file mode 100644
index db9af09f38..0000000000
--- a/samplecode/SampleUnitMapper.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include "SampleCode.h"
-#include "SkView.h"
-#include "SkCanvas.h"
-#include "SkDevice.h"
-#include "SkPaint.h"
-#include "SkUnitMappers.h"
-#include "SkCubicInterval.h"
-
-#include "SkWidgetViews.h"
-
-static SkStaticTextView* make_textview(SkView* parent,
-                                       const SkRect& bounds,
-                                       const SkPaint& paint) {
-    SkStaticTextView* view = new SkStaticTextView;
-    view->setMode(SkStaticTextView::kFixedSize_Mode);
-    view->setPaint(paint);
-    view->setVisibleP(true);
-    view->setSize(bounds.width(), bounds.height());
-    view->setLoc(bounds.fLeft, bounds.fTop);
-    parent->attachChildToFront(view)->unref();
-    return view;
-}
-
-static void set_scalar(SkStaticTextView* view, SkScalar value) {
-    SkString str;
-    str.appendScalar(value);
-    view->setText(str);
-}
-
-class UnitMapperView : public SampleView {
-    SkPoint fPts[4];
-    SkMatrix fMatrix;
-    SkStaticTextView* fViews[4];
-
-    void setViews() {
-        set_scalar(fViews[0], fPts[1].fX);
-        set_scalar(fViews[1], fPts[1].fY);
-        set_scalar(fViews[2], fPts[2].fX);
-        set_scalar(fViews[3], fPts[2].fY);
-    }
-
-public:
-    UnitMapperView() {
-        fPts[0].set(0, 0);
-        fPts[1].set(SK_Scalar1 / 3, SK_Scalar1 / 3);
-        fPts[2].set(SK_Scalar1 * 2 / 3, SK_Scalar1 * 2 / 3);
-        fPts[3].set(SK_Scalar1, SK_Scalar1);
-
-        fMatrix.setScale(SK_Scalar1 * 200, -SK_Scalar1 * 200);
-        fMatrix.postTranslate(SkIntToScalar(100), SkIntToScalar(300));
-
-        SkRect r = {
-            SkIntToScalar(350), SkIntToScalar(100),
-            SkIntToScalar(500), SkIntToScalar(130)
-        };
-        SkPaint paint;
-        paint.setAntiAlias(true);
-        paint.setTextSize(SkIntToScalar(25));
-        for (int i = 0; i < 4; i++) {
-            fViews[i] = make_textview(this, r, paint);
-            r.offset(0, r.height());
-        }
-        this->setViews();
-    }
-
-protected:
-    // overrides from SkEventSink
-    virtual bool onQuery(SkEvent* evt) {
-        if (SampleCode::TitleQ(*evt)) {
-            SampleCode::TitleR(evt, "UnitMapper");
-            return true;
-        }
-        return this->INHERITED::onQuery(evt);
-    }
-
-    virtual void onDrawContent(SkCanvas* canvas) {
-        SkPaint paint;
-        paint.setAntiAlias(true);
-        paint.setColor(0xFF8888FF);
-
-        SkRect r = { 0, 0, SK_Scalar1, SK_Scalar1 };
-
-        canvas->concat(fMatrix);
-        canvas->drawRect(r, paint);
-
-        paint.setColor(SK_ColorBLACK);
-        paint.setStyle(SkPaint::kStroke_Style);
-        paint.setStrokeWidth(0);
-        paint.setStrokeCap(SkPaint::kRound_Cap);
-
-        SkPath path;
-        path.moveTo(fPts[0]);
-        path.cubicTo(fPts[1], fPts[2], fPts[3]);
-        canvas->drawPath(path, paint);
-
-        paint.setColor(SK_ColorRED);
-        paint.setStrokeWidth(0);
-        canvas->drawLine(0, 0, SK_Scalar1, SK_Scalar1, paint);
-
-        paint.setColor(SK_ColorBLUE);
-        paint.setStrokeWidth(SK_Scalar1 / 60);
-        for (int i = 0; i < 50; i++) {
-            SkScalar x = i * SK_Scalar1 / 49;
-            canvas->drawPoint(x, SkEvalCubicInterval(&fPts[1], x), paint);
-        }
-
-        paint.setStrokeWidth(SK_Scalar1 / 20);
-        paint.setColor(SK_ColorGREEN);
-        canvas->drawPoints(SkCanvas::kPoints_PointMode, 2, &fPts[1], paint);
-    }
-
-    bool invertPt(SkScalar x, SkScalar y, SkPoint* result) {
-        if (NULL == result)
-            return true;
-
-        SkMatrix m;
-        if (!fMatrix.invert(&m)) {
-            return false;
-        }
-
-        m.mapXY(x, y, result);
-        return true;
-    }
-
-    int hittest(SkScalar x, SkScalar y) {
-        SkPoint target = { x, y };
-        SkPoint pts[2] = { fPts[1], fPts[2] };
-        fMatrix.mapPoints(pts, 2);
-        for (int i = 0; i < 2; i++) {
-            if (SkPoint::Distance(pts[i], target) < SkIntToScalar(4)) {
-                return i + 1;
-            }
-        }
-        return -1;
-    }
-
-    virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned) SK_OVERRIDE {
-        fDragIndex = hittest(x, y);
-        return fDragIndex >= 0 ? new Click(this) : NULL;
-    }
-
-    virtual bool onClick(Click* click) {
-        if (fDragIndex >= 0) {
-            if (!invertPt(click->fCurr.fX, click->fCurr.fY,
-                          &fPts[fDragIndex])) {
-                return false;
-            }
-
-            this->setViews();
-            this->inval(NULL);
-            return true;
-        }
-        return false;
-    }
-
-private:
-    int fDragIndex;
-
-    typedef SampleView INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-static SkView* MyFactory() { return new UnitMapperView; }
-static SkViewRegister reg(MyFactory);
diff --git a/samplecode/SampleVertices.cpp b/samplecode/SampleVertices.cpp
index 4c3a17eb00..1e568f5568 100644
--- a/samplecode/SampleVertices.cpp
+++ b/samplecode/SampleVertices.cpp
@@ -47,7 +47,7 @@ static SkShader* make_shader1(const SkIPoint& size) {
                       { SkIntToScalar(size.fX), SkIntToScalar(size.fY) } };
     SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorRED };
     return SkGradientShader::CreateLinear(pts, colors, NULL,
-                    SK_ARRAY_COUNT(colors), SkShader::kMirror_TileMode, NULL);
+                    SK_ARRAY_COUNT(colors), SkShader::kMirror_TileMode);
 }
 
 class VerticesView : public SampleView {