Allow CanvasSkia to bind to an existing SkCanvas.

views/view.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 "views/view.h"
 
 #include <algorithm>
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 1119 matching lines @@
   } else {
     for (int i = 0, count = child_count(); i < count; ++i) {
       gfx::Point new_offset(offset.x() + child_at(i)->x(),
                             offset.y() + child_at(i)->y());
       child_at(i)->UpdateChildLayerBounds(new_offset);
     }
   }
 }
 
 void View::OnPaintLayer(gfx::Canvas* canvas) {
-  canvas->AsCanvasSkia()->drawColor(SK_ColorBLACK, SkXfermode::kClear_Mode);
+  canvas->GetSkCanvas()->drawColor(SK_ColorBLACK, SkXfermode::kClear_Mode);
   PaintCommon(canvas);
 }
 
 // Input -----------------------------------------------------------------------
 
 bool View::HasHitTestMask() const {
   return false;
 }
 
 void View::GetHitTestMask(gfx::Path* mask) const {
@@ skipping 843 matching lines @@
 
   OSExchangeData data;
   WriteDragData(press_pt, &data);
 
   // Message the RootView to do the drag and drop. That way if we're removed
   // the RootView can detect it and avoid calling us back.
   GetWidget()->RunShellDrag(this, data, drag_operations);
 }
 
 }  // namespace views