Rounded background image fast path

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

Index: third_party/WebKit/Source/platform/graphics/GradientGeneratedImage.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/GradientGeneratedImage.cpp b/third_party/WebKit/Source/platform/graphics/GradientGeneratedImage.cpp
index b4dff46a969ed0abb8b4b54df99ff6bffeec0ba8..6424659af0708a77c8695d49fddb540982ef4735 100644
--- a/third_party/WebKit/Source/platform/graphics/GradientGeneratedImage.cpp
+++ b/third_party/WebKit/Source/platform/graphics/GradientGeneratedImage.cpp
@@ -26,6 +26,7 @@
 #include "platform/graphics/GradientGeneratedImage.h"
 
 #include "platform/geometry/FloatRect.h"
+#include "platform/geometry/IntSize.h"
 #include "platform/graphics/GraphicsContext.h"
 
 namespace blink {
@@ -52,4 +53,25 @@ void GradientGeneratedImage::drawTile(GraphicsContext& context, const FloatRect&
     context.fillRect(srcRect);
 }
 
+bool GradientGeneratedImage::applyShader(SkPaint& paint, const SkMatrix* localMatrix)
+{
+    AffineTransform transform;
+    if (localMatrix) {
+        transform.setMatrix(
+            localMatrix->getScaleX(), localMatrix->getSkewY(),
+            localMatrix->getSkewX(), localMatrix->getScaleY(),
+            localMatrix->getTranslateX(), localMatrix->getTranslateY());
+    }
+
+    DCHECK(m_gradient);
+    // TODO(fmalita): remove the transform from gradient/pattern state, and pass the matrix to
+    // applyToPaint if needed.
+    const AffineTransform previousTransform = m_gradient->gradientSpaceTransform();
+    m_gradient->setGradientSpaceTransform(transform);
+    m_gradient->applyToPaint(paint);
+    m_gradient->setGradientSpaceTransform(previousTransform);
+
+    return true;
+}
+
 } // namespace blink