Allow CanvasSkia to bind to an existing SkCanvas.

chrome/browser/ui/views/infobars/infobar_background.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/browser/ui/views/infobars/infobar_background.h"
 
 #include "chrome/browser/infobars/infobar.h"
 #include "chrome/browser/ui/views/infobars/infobar_view.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/canvas_skia_paint.h"
@@ skipping 21 matching lines @@
   SkShader* gradient_shader = SkGradientShader::CreateLinear(
       gradient_points, gradient_colors, NULL, 2, SkShader::kClamp_TileMode);
   SkPaint paint;
   paint.setStrokeWidth(SkIntToScalar(InfoBar::kSeparatorLineHeight));
   paint.setStyle(SkPaint::kFill_Style);
   paint.setStrokeCap(SkPaint::kRound_Cap);
   paint.setShader(gradient_shader);
   gradient_shader->unref();
 
   InfoBarView* infobar = static_cast<InfoBarView*>(view);
-  gfx::CanvasSkia* canvas_skia = canvas->AsCanvasSkia();
+  SkCanvas* canvas_skia = canvas->GetSkCanvas();
   canvas_skia->drawPath(infobar->fill_path(), paint);
 
   paint.setShader(NULL);
   paint.setColor(SkColorSetA(separator_color_,
                              SkColorGetA(gradient_colors[0])));
   paint.setStyle(SkPaint::kStroke_Style);
   // Anti-alias the path so it doesn't look goofy when the edges are not at 45
   // degree angles, but don't anti-alias anything else, especially not the fill,
   // lest we get weird color bleeding problems.
   paint.setAntiAlias(true);
   canvas_skia->drawPath(infobar->stroke_path(), paint);
   paint.setAntiAlias(false);
 
   // Now draw the separator at the bottom.
   canvas->FillRectInt(separator_color_, 0,
                       view->height() - InfoBar::kSeparatorLineHeight,
                       view->width(), InfoBar::kSeparatorLineHeight);
 }