Removal of dependencies on PlatformDevice classes.

ppapi/proxy/ppb_image_data_proxy.cc

 // 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.
 
 #include "ppapi/proxy/ppb_image_data_proxy.h"
 
 #include <string.h>  // For memcpy
 
 #include <vector>
 
@@ skipping 79 matching lines @@
 }
 
 void* ImageData::Map() {
   if (!mapped_canvas_.get()) {
     mapped_canvas_.reset(transport_dib_->GetPlatformCanvas(desc_.size.width,
                                                            desc_.size.height));
     if (!mapped_canvas_.get())
       return NULL;
   }
   const SkBitmap& bitmap =
-      mapped_canvas_->getTopPlatformDevice().accessBitmap(true);
+      skia::GetTopDevice(*mapped_canvas_)->accessBitmap(true);
 
   bitmap.lockPixels();
   return bitmap.getAddr(0, 0);
 }
 
 void ImageData::Unmap() {
   // TODO(brettw) have a way to unmap a TransportDIB. Currently this isn't
   // possible since deleting the TransportDIB also frees all the handles.
   // We need to add a method to TransportDIB to release the handles.
 }
@@ skipping 11 matching lines @@
     return reinterpret_cast<ImageHandle>(i);
 #elif defined(OS_MACOSX)
     return ImageHandle(i, false);
 #else
     return static_cast<ImageHandle>(i);
 #endif
 }
 
 }  // namespace proxy
 }  // namespace pp