cc: Make PaintCanvas abstract

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

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 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
@@ skipping 64 matching lines @@
     m_metaData = *metaData;
 
   // FIXME: Do some tests to determine how many states are typically used, and
   // allocate several here.
   m_paintStateStack.push_back(GraphicsContextState::create());
   m_paintState = m_paintStateStack.back().get();
 
   if (contextDisabled()) {
     DEFINE_STATIC_LOCAL(SkCanvas*, nullSkCanvas,
                         (SkMakeNullCanvas().release()));
-    DEFINE_STATIC_LOCAL(PaintCanvas, nullCanvas, (nullSkCanvas));
+    DEFINE_STATIC_LOCAL(SkiaPaintCanvas, nullCanvas, (nullSkCanvas));
     m_canvas = &nullCanvas;
   }
 }
 
 GraphicsContext::~GraphicsContext() {
 #if DCHECK_IS_ON()
   if (!m_disableDestructionChecks) {
     DCHECK(!m_paintStateIndex);
     DCHECK(!m_paintState->saveCount());
     DCHECK(!m_layerCount);
@@ skipping 1251 matching lines @@
       break;
     default:
       NOTREACHED();
       break;
   }
 
   return nullptr;
 }
 
 }  // namespace blink