Use SkArenaAlloc in the SkAutoBlitterChoose code.

- Added default implementation of onMakeContext to support use in android.

Searches for uses:
"public SkShader"  package:^chromium$ -file:^src/third_party/skia
package:^aosp.* "public SkShader"  -file:external/skia -file:.*third_party/skia
package:^android$ "public SkShader"  -file:external/skia -file:.*third_party/skia

... shows that no subclass overrides onCreateContext.

TBR=reed@google.com
TBR=mtklein@google.com

Change-Id: I8bd5f57a79534574e344b165d31dccee41c31767
Reviewed-on: https://skia-review.googlesource.com/8140
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/core/SkColorShader.cpp b/src/core/SkColorShader.cpp
index 11a26cdace..5c8bde6ee1 100644
--- a/src/core/SkColorShader.cpp
+++ b/src/core/SkColorShader.cpp
@@ -31,8 +31,8 @@ uint32_t SkColorShader::ColorShaderContext::getFlags() const {
     return fFlags;
 }
 
-SkShader::Context* SkColorShader::onCreateContext(const ContextRec& rec, void* storage) const {
-    return new (storage) ColorShaderContext(*this, rec);
+SkShader::Context* SkColorShader::onMakeContext(const ContextRec& rec, SkArenaAlloc* alloc) const {
+    return alloc->make<ColorShaderContext>(*this, rec);
 }
 
 SkColorShader::ColorShaderContext::ColorShaderContext(const SkColorShader& shader,
@@ -149,8 +149,8 @@ uint32_t SkColor4Shader::Color4Context::getFlags() const {
     return fFlags;
 }
 
-SkShader::Context* SkColor4Shader::onCreateContext(const ContextRec& rec, void* storage) const {
-    return new (storage) Color4Context(*this, rec);
+SkShader::Context* SkColor4Shader::onMakeContext(const ContextRec& rec, SkArenaAlloc* alloc) const {
+    return alloc->make<Color4Context>(*this, rec);
 }
 
 SkColor4Shader::Color4Context::Color4Context(const SkColor4Shader& shader,