Add sk_sp helpers and switch Blink SkShader clients to the new APIs

third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp

Index: third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp b/third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp
index 55a6b12e4d89bba1f73ce4fa67fd90a69e2ca0c2..a6a00dde1ece5f9140253eeed9f6c5fb3add5de0 100644
--- a/third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp
+++ b/third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp
@@ -303,12 +303,12 @@ void GraphicsContext::beginRecording(const FloatRect& bounds)
         skia::GetMetaData(*m_canvas) = m_metaData;
 }
 
-PassRefPtr<const SkPicture> GraphicsContext::endRecording()
+PassRefPtr<SkPicture> GraphicsContext::endRecording()
 {
     if (contextDisabled())
         return nullptr;
 
-    RefPtr<const SkPicture> picture = adoptRef(m_pictureRecorder.endRecordingAsPicture());
+    RefPtr<SkPicture> picture = adoptRef(m_pictureRecorder.endRecordingAsPicture());

[Stephen White, 2016/03/18 14:48:27]

Not related to this patch, but are there plans to make an sk_sp-ified version of
endRecordingAsPicture() over in Skia?

     m_canvas = nullptr;
     ASSERT(picture);
     return picture.release();
@@ -635,11 +635,10 @@ void GraphicsContext::drawLineForDocumentMarker(const FloatPoint& pt, float widt
 
     SkMatrix localMatrix;
     localMatrix.setTranslate(originX, originY);
-    RefPtr<SkShader> shader = adoptRef(SkShader::CreateBitmapShader(
-        *misspellBitmap[index], SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, &localMatrix));
 
     SkPaint paint;
-    paint.setShader(shader.get());
+    paint.setShader(SkShader::MakeBitmapShader(
+        *misspellBitmap[index], SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, &localMatrix));
 
     SkRect rect;
     rect.set(originX, originY, originX + WebCoreFloatToSkScalar(width) * deviceScaleFactor, originY + SkIntToScalar(misspellBitmap[index]->height()));