make SkXfermode.h go away

This is step one:
- make SkXfermode useless to public clients
- everything they should need is in SkBlendMode.h

Step two:
- remove SkXfermode.h entirely (since skia core will already be using SkXfermodePriv.h)

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4534

Change-Id: If2cea9f71df92430ed6644edb98dd306c5572cbc
Reviewed-on: https://skia-review.googlesource.com/4534
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>

4 files changed, 7 insertions, 5 deletions

diff --git a/src/gpu/SkGrPriv.h b/src/gpu/SkGrPriv.h
index ecbe558c94..bd1d7155e6 100644
--- a/src/gpu/SkGrPriv.h
+++ b/src/gpu/SkGrPriv.h
@@ -12,7 +12,7 @@
 #include "GrBlend.h"
 #include "SkImageInfo.h"
 #include "SkMatrix.h"
-#include "SkXfermode.h"
+#include "SkXfermodePriv.h"
 
 class GrCaps;
 class GrContext;
diff --git a/src/gpu/effects/GrCustomXfermode.cpp b/src/gpu/effects/GrCustomXfermode.cpp
index 3895f57f5d..8a54d4457a 100644
--- a/src/gpu/effects/GrCustomXfermode.cpp
+++ b/src/gpu/effects/GrCustomXfermode.cpp
@@ -384,8 +384,8 @@ void CustomXPFactory::getInvariantBlendedColor(const GrProcOptInfo& colorPOI,
 
 GR_DEFINE_XP_FACTORY_TEST(CustomXPFactory);
 sk_sp<GrXPFactory> CustomXPFactory::TestCreate(GrProcessorTestData* d) {
-    int mode = d->fRandom->nextRangeU(SkXfermode::kLastCoeffMode + 1,
-                                      SkXfermode::kLastSeparableMode);
+    int mode = d->fRandom->nextRangeU((int)SkBlendMode::kLastCoeffMode + 1,
+                                      (int)SkBlendMode::kLastSeparableMode);
 
     return sk_sp<GrXPFactory>(new CustomXPFactory(static_cast<SkBlendMode>(mode)));
 }
diff --git a/src/gpu/effects/GrPorterDuffXferProcessor.cpp b/src/gpu/effects/GrPorterDuffXferProcessor.cpp
index d511fae45d..ff95dac723 100644
--- a/src/gpu/effects/GrPorterDuffXferProcessor.cpp
+++ b/src/gpu/effects/GrPorterDuffXferProcessor.cpp
@@ -227,7 +227,7 @@ GR_MAKE_BITFIELD_OPS(BlendFormula::Properties);
  * with and without an opaque input color. Optimization properties are deduced at compile time so we
  * can make runtime decisions quickly. RGB coverage is not supported.
  */
-static const BlendFormula gBlendTable[2][2][SkXfermode::kLastCoeffMode + 1] = {
+static const BlendFormula gBlendTable[2][2][(int)SkBlendMode::kLastCoeffMode + 1] = {
 
                      /*>> No coverage, input color unknown <<*/ {{
 
@@ -302,7 +302,7 @@ static const BlendFormula gBlendTable[2][2][SkXfermode::kLastCoeffMode + 1] = {
     /* screen */     COEFF_FORMULA(   kOne_GrBlendCoeff,    kISC_GrBlendCoeff),
 }}};
 
-static const BlendFormula gLCDBlendTable[SkXfermode::kLastCoeffMode + 1] = {
+static const BlendFormula gLCDBlendTable[(int)SkBlendMode::kLastCoeffMode + 1] = {
     /* clear */      COVERAGE_SRC_COEFF_ZERO_FORMULA(BlendFormula::kCoverage_OutputType),
     /* src */        COVERAGE_FORMULA(BlendFormula::kCoverage_OutputType, kOne_GrBlendCoeff),
     /* dst */        NO_DST_WRITE_FORMULA,
diff --git a/src/gpu/glsl/GrGLSLBlend.cpp b/src/gpu/glsl/GrGLSLBlend.cpp
index 73a145b7c3..da73b6644b 100644
--- a/src/gpu/glsl/GrGLSLBlend.cpp
+++ b/src/gpu/glsl/GrGLSLBlend.cpp
@@ -4,8 +4,10 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+
 #include "GrGLSLBlend.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
+#include "SkXfermodePriv.h"
 
 //////////////////////////////////////////////////////////////////////////////
 //  Advanced (non-coeff) blend helpers