Allow CanvasSkia to bind to an existing SkCanvas.

chrome/common/badge_util.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 "chrome/common/badge_util.h"
 
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/core/SkTypeface.h"
@@ skipping 74 matching lines @@
   // Render the badge bitmap and overlay into a canvas.
   scoped_ptr<gfx::CanvasSkia> canvas(
       new gfx::CanvasSkia(badge_width, icon.height(), false));
   canvas->DrawBitmapInt(icon, 0, 0);
 
   // Draw the text overlay centered horizontally and vertically. Skia expects
   // us to specify the lower left coordinate of the text box, which is why we
   // add 'font_size - 1' to the height.
   SkScalar x = (badge_width - text_width)/2;
   SkScalar y = (icon.height() - font_size)/2 + font_size - 1;
-  canvas->drawText(badge_text.c_str(), badge_text.size(), x, y, *paint);
+  canvas->sk_canvas()->drawText(
+      badge_text.c_str(), badge_text.size(), x, y, *paint);
 
   // Return the generated image.
   return canvas->ExtractBitmap();
 }
 
 }  // namespace badge_util