Revert of Make cc/paint have concrete types

third_party/WebKit/Source/core/svg/graphics/SVGImageTest.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/svg/graphics/SVGImage.h"
 
 #include "core/svg/graphics/SVGImageChromeClient.h"
 #include "platform/SharedBuffer.h"
 #include "platform/Timer.h"
 #include "platform/geometry/FloatRect.h"
@@ skipping 12 matching lines @@
 
   void load(const char* data, bool shouldPause) {
     m_observer = new PauseControlImageObserver(shouldPause);
     m_image = SVGImage::create(m_observer);
     m_image->setData(SharedBuffer::create(data, strlen(data)), true);
   }
 
   void pumpFrame() {
     Image* image = m_image.get();
     std::unique_ptr<SkCanvas> nullCanvas = SkMakeNullCanvas();
-    PaintCanvas canvas(nullCanvas.get());
+    PaintCanvasPassThrough canvas(nullCanvas.get());
     PaintFlags flags;
     FloatRect dummyRect(0, 0, 100, 100);
     image->draw(&canvas, flags, dummyRect, dummyRect,
                 DoNotRespectImageOrientation,
                 Image::DoNotClampImageToSourceRect);
   }
 
  private:
   class PauseControlImageObserver
       : public GarbageCollectedFinalized<PauseControlImageObserver>,
@@ skipping 92 matching lines @@
   EXPECT_TRUE(chromeClient.isSuspended());
   EXPECT_FALSE(timer->isActive());
 
   // Simulate a draw. This should resume the animation again.
   pumpFrame();
   EXPECT_FALSE(chromeClient.isSuspended());
   EXPECT_TRUE(timer->isActive());
 }
 
 }  // namespace blink