ImageBuffer-less SVG masking and clipping.

Source/core/platform/graphics/GraphicsContextTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 197 matching lines @@
     context.restore();
 
     // Another non-rectangular clip.
     context.save();
     context.clip(IntRect(30, 30, 20, 20));
     context.clipOut(IntRect(30, 30, 10, 10));
     context.fillRect(FloatRect(10, 10, 90, 90), opaque, CompositeSourceOver);
     EXPECT_EQ_RECT(IntRect(), context.opaqueRegion().asRect());
     EXPECT_PIXELS_MATCH(bitmap, context.opaqueRegion().asRect());
     context.restore();
-
-    OwnPtr<ImageBuffer> alphaImage = ImageBuffer::create(IntSize(100, 100));
-    alphaImage->context()->fillRect(IntRect(0, 0, 100, 100), alpha);
-
-    // Clipping with a non-opaque Image (there is no way to mark an ImageBuffer as opaque today).
-    context.save();
-    context.clipToImageBuffer(alphaImage.get(), FloatRect(30, 30, 10, 10));
-    context.fillRect(FloatRect(10, 10, 90, 90), opaque, CompositeSourceOver);
-    context.restore();
-    EXPECT_EQ_RECT(IntRect(), context.opaqueRegion().asRect());
-    EXPECT_PIXELS_MATCH(bitmap, context.opaqueRegion().asRect());
 }
 
 TEST(GraphicsContextTest, trackImageMask)
 {
     SkBitmap bitmap;
     bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
     bitmap.allocPixels();
     bitmap.eraseColor(0);
     SkCanvas canvas(bitmap);
 
@@ skipping 854 matching lines @@
     path.moveTo(FloatPoint(10, 10));
     path.addLineTo(FloatPoint(40, 40));
     context.strokePath(path);
 
     context.endTransparencyLayer();
     EXPECT_EQ_RECT(IntRect(), context.opaqueRegion().asRect());
     EXPECT_PIXELS_MATCH_EXACT(bitmap, context.opaqueRegion().asRect());
 }
 
 } // namespace