We assume that each SkDevice is our custom PlatformDevice. This assumption is not valid when usin...

skia/ext/platform_canvas.h

 // Copyright (c) 2011 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.
 
 #ifndef SKIA_EXT_PLATFORM_CANVAS_H_
 #define SKIA_EXT_PLATFORM_CANVAS_H_
 #pragma once
 
 // The platform-specific device will include the necessary platform headers
 // to get the surface type.
@@ skipping 81 matching lines @@
   // alignment reasons we may wish to increase that.
   static size_t StrideForWidth(unsigned width);
 
   // Allow callers to see the non-virtual function even though we have an
   // override of a virtual one.
   // FIXME(brettw) is this necessary?
   using SkCanvas::clipRect;
 
  private:
   // Helper method used internally by the initialize() methods.
-  bool initializeWithDevice(SkDevice* device);
+  bool initializeWithDevice(PlatformDevice* device);
 
   // Unimplemented. This is to try to prevent people from calling this function
   // on SkCanvas. SkCanvas' version is not virtual, so we can't prevent this
   // 100%, but hopefully this will make people notice and not use the function.
   // Calling SkCanvas' version will create a new device which is not compatible
   // with us and we will crash if somebody tries to draw into it with
   // CoreGraphics.
   virtual SkDevice* setBitmapDevice(const SkBitmap& bitmap);
 
   // Disallow copy and assign.
@@ skipping 19 matching lines @@
 // synchronize the bitmap to OS if necessary.
 //
 // Note: These functions will eventually replace
 // PlatformCanvas::beginPlatformPaint and PlatformCanvas::endPlatformPaint.
 SK_API PlatformDevice::PlatformSurface BeginPlatformPaint(SkCanvas* canvas);
 SK_API void EndPlatformPaint(SkCanvas* canvas);
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_PLATFORM_CANVAS_H_