Allow CanvasSkia to bind to an existing SkCanvas.

chrome/browser/chromeos/login/rounded_view.h

 // Copyright (c) 2010 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 CHROME_BROWSER_CHROMEOS_LOGIN_ROUNDED_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_ROUNDED_VIEW_H_
 
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/canvas_skia.h"
 #include "ui/gfx/rect.h"
@@ skipping 43 matching lines @@
   // Draws custom frame for the view.
   virtual void DrawFrame(gfx::Canvas* canvas);
 };
 
 // RoundedView implementation.
 
 template <typename C>
 void RoundedView<C>::Paint(gfx::Canvas* canvas) {
   // Setup clip region.
   canvas->Save();
-  canvas->AsCanvasSkia()->clipPath(GetClipPath());
+  canvas->GetSkCanvas()->clipPath(GetClipPath());
   // Do original painting.
   C::Paint(canvas);
   canvas->Restore();
   // Add frame.
   DrawFrame(canvas);
 }
 
 template <typename C>
 SkPath RoundedView<C>::GetClipPath() const {
   SkPath round_view;
@@ skipping 30 matching lines @@
 
   // Used to make nested rounded rects look better.
   const SkScalar kOriginShift = 1.0;
   const SkScalar kDelta = 0.3;
 
   // Draw inner frame.
   view_rect.fLeft -= kOriginShift;
   view_rect.fTop -= kOriginShift;
   view_rect.inset(rounded_view::kStrokeWidth, rounded_view::kStrokeWidth);
   paint.setColor(rounded_view::kInnerFrameColor);
-  canvas->AsCanvasSkia()->
+  canvas->GetSkCanvas()->
       drawRoundRect(view_rect,
                     rounded_view::kCornerRadius - rounded_view::kStrokeWidth,
                     rounded_view::kCornerRadius - rounded_view::kStrokeWidth,
                     paint);
 
   // Draw outer frame.
   view_rect.fLeft -= kDelta;
   view_rect.fTop -= kDelta;
   view_rect.offset(rounded_view::kStrokeWidth - kDelta,
                    rounded_view::kStrokeWidth - kDelta);
   paint.setColor(rounded_view::kOuterFrameColor);
-  canvas->AsCanvasSkia()->drawRoundRect(view_rect, rounded_view::kCornerRadius,
+  canvas->GetSkCanvas()->drawRoundRect(view_rect, rounded_view::kCornerRadius,
                                         rounded_view::kCornerRadius, paint);
 }
 
 }
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ROUNDED_VIEW_H_