Revert "Revert "Delete SkGaussianEdgeShader""

This reverts commit 9d14f936cc09de2a37c05c7af2cf60aa31f74722.

Reason for revert: Android fix merged.

Original change's description:
> Revert "Delete SkGaussianEdgeShader"
> 
> This reverts commit 64790a3714467300848971aa153aca8cea91cf7b.
> 
> Reason for revert: pending Android fix merge.
> 
> Original change's description:
> > Delete SkGaussianEdgeShader
> > 
> > No longer used.
> > 
> > Change-Id: I65a61696060ca19f528066ea587e140798450e36
> > Reviewed-on: https://skia-review.googlesource.com/18132
> > Reviewed-by: Jim Van Verth <jvanverth@google.com>
> > Commit-Queue: Florin Malita <fmalita@chromium.org>
> > 
> 
> TBR=jvanverth@google.com,fmalita@chromium.org,reed@google.com
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> 
> Change-Id: I88a428e942c78b1fc8e70501ba7fdda5727b2ab2
> Reviewed-on: https://skia-review.googlesource.com/18156
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Commit-Queue: Florin Malita <fmalita@chromium.org>
> 

TBR=mtklein@google.com,jvanverth@google.com,reviews@skia.org,fmalita@chromium.org,reed@google.com
No-Presubmit: true
No-Tree-Checks: true
No-Try: true

Change-Id: Ia6c97a79a6425a28fab49984691505bf89ac9736
Reviewed-on: https://skia-review.googlesource.com/18227
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>

3 files changed, 0 insertions, 124 deletions

diff --git a/src/effects/SkGaussianEdgeShader.cpp b/src/effects/SkGaussianEdgeShader.cpp
deleted file mode 100644
index c710b949d3..0000000000
--- a/src/effects/SkGaussianEdgeShader.cpp
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkGaussianEdgeShader.h"
-#include "SkReadBuffer.h"
-#include "SkWriteBuffer.h"
-
-class SkArenaAlloc;
-
- /** \class SkGaussianEdgeShaderImpl
- This subclass of shader applies a Gaussian to shadow edge
-
- If the primitive supports an implicit distance to the edge, the radius of the blur is specified
- by r & g values of the color in 14.2 fixed point. For spot shadows, we increase the stroke width
- to set the shadow against the shape. This pad is specified by b, also in 6.2 fixed point.
-
- When not using implicit distance, then b in the input color represents the input to the
- blur function.
- */
-class SkGaussianEdgeShaderImpl : public SkShaderBase {
-public:
-    SkGaussianEdgeShaderImpl() {}
-
-    bool isOpaque() const override;
-
-#if SK_SUPPORT_GPU
-    sk_sp<GrFragmentProcessor> asFragmentProcessor(const AsFPArgs&) const override;
-#endif
-
-    SK_TO_STRING_OVERRIDE()
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkGaussianEdgeShaderImpl)
-
-protected:
-    void flatten(SkWriteBuffer&) const override;
-    Context* onMakeContext(const ContextRec& rec, SkArenaAlloc* storage) const override {
-        return nullptr;
-    }
-private:
-    friend class SkGaussianEdgeShader;
-
-    typedef SkShaderBase INHERITED;
-};
-
-////////////////////////////////////////////////////////////////////////////
-
-#if SK_SUPPORT_GPU
-
-#include "effects/GrBlurredEdgeFragmentProcessor.h"
-
-////////////////////////////////////////////////////////////////////////////
-
-sk_sp<GrFragmentProcessor> SkGaussianEdgeShaderImpl::asFragmentProcessor(const AsFPArgs&) const {
-    return GrBlurredEdgeFP::Make(GrBlurredEdgeFP::kGaussian_Mode);
-}
-
-#endif
-
-////////////////////////////////////////////////////////////////////////////
-
-bool SkGaussianEdgeShaderImpl::isOpaque() const {
-    return false;
-}
-
-////////////////////////////////////////////////////////////////////////////
-
-#ifndef SK_IGNORE_TO_STRING
-void SkGaussianEdgeShaderImpl::toString(SkString* str) const {
-    str->appendf("GaussianEdgeShader: ()");
-}
-#endif
-
-sk_sp<SkFlattenable> SkGaussianEdgeShaderImpl::CreateProc(SkReadBuffer& buf) {
-    return sk_make_sp<SkGaussianEdgeShaderImpl>();
-}
-
-void SkGaussianEdgeShaderImpl::flatten(SkWriteBuffer& buf) const {
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-sk_sp<SkShader> SkGaussianEdgeShader::Make() {
-    return sk_make_sp<SkGaussianEdgeShaderImpl>();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkGaussianEdgeShader)
-SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkGaussianEdgeShaderImpl)
-SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END
-
-///////////////////////////////////////////////////////////////////////////////
diff --git a/src/effects/SkGaussianEdgeShader.h b/src/effects/SkGaussianEdgeShader.h
deleted file mode 100644
index f0554dd0a7..0000000000
--- a/src/effects/SkGaussianEdgeShader.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkGaussianEdgeShader_DEFINED
-#define SkGaussianEdgeShader_DEFINED
-
-#include "SkShaderBase.h"
-
-class SK_API SkGaussianEdgeShader {
-public:
-    /** Returns a shader that applies a Gaussian blur depending on distance to the edge
-    * Currently this is only useable with Circle and RRect shapes on the GPU backend.
-    * Raster will draw nothing.
-    */
-    static sk_sp<SkShader> Make();
-
-    SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
-
-private:
-    SkGaussianEdgeShader(); // can't be instantiated
-};
-
-#endif
diff --git a/src/ports/SkGlobalInitialization_default.cpp b/src/ports/SkGlobalInitialization_default.cpp
index 8052417ca8..de9b61ae9c 100644
--- a/src/ports/SkGlobalInitialization_default.cpp
+++ b/src/ports/SkGlobalInitialization_default.cpp
@@ -22,7 +22,6 @@
 #include "SkDisplacementMapEffect.h"
 #include "SkDropShadowImageFilter.h"
 #include "../../src/effects/SkEmbossMaskFilter.h"
-#include "../../src/effects/SkGaussianEdgeShader.h"
 #include "SkGradientShader.h"
 #include "SkHighContrastFilter.h"
 #include "SkImageSource.h"
@@ -92,7 +91,6 @@ void SkFlattenable::PrivateInitializer::InitEffects() {
     SkGradientShader::InitializeFlattenables();
     SkLightingShader::InitializeFlattenables();
     SkNormalSource::InitializeFlattenables();
-    SkGaussianEdgeShader::InitializeFlattenables();
 
     // PathEffect
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkArcToPathEffect)