Allow CanvasSkia to bind to an existing SkCanvas.

chrome/browser/download/download_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.
 //
 // Download utility implementation
 
 #include "chrome/browser/download/download_util.h"
 
 #if defined(OS_WIN)
 #include <shobjidl.h>
@@ skipping 243 matching lines @@
         SkShader::CreateBitmapShader(*foreground,
                                      SkShader::kClamp_TileMode,
                                      SkShader::kClamp_TileMode);
     SkMatrix shader_scale;
     shader_scale.setTranslate(SkIntToScalar(foreground_bounds.x()),
                               SkIntToScalar(foreground_bounds.y()));
     shader->setLocalMatrix(shader_scale);
     foreground_paint.setShader(shader);
     foreground_paint.setAntiAlias(true);
     shader->unref();
-    canvas->AsCanvasSkia()->drawPath(path, foreground_paint);
+    canvas->GetSkCanvas()->drawPath(path, foreground_paint);
     return;
   }
 
   canvas->DrawBitmapInt(*foreground,
                         foreground_bounds.x(),
                         foreground_bounds.y(),
                         foreground_paint);
 }
 
 void PaintDownloadComplete(gfx::Canvas* canvas,
@@ skipping 19 matching lines @@
   // Mirror the positions if necessary.
   complete_bounds.set_x(containing_view->GetMirroredXForRect(complete_bounds));
 #endif
 
   // Start at full opacity, then loop back and forth five times before ending
   // at zero opacity.
   double opacity = sin(animation_progress * PI * kCompleteAnimationCycles +
                    PI/2) / 2 + 0.5;
 
   canvas->SaveLayerAlpha(static_cast<int>(255.0 * opacity), complete_bounds);
-  canvas->AsCanvasSkia()->drawARGB(0, 255, 255, 255, SkXfermode::kClear_Mode);
+  canvas->GetSkCanvas()->drawARGB(0, 255, 255, 255, SkXfermode::kClear_Mode);
   canvas->DrawBitmapInt(*complete, complete_bounds.x(), complete_bounds.y());
   canvas->Restore();
 }
 
 void PaintDownloadInterrupted(gfx::Canvas* canvas,
 #if defined(TOOLKIT_VIEWS)
                               views::View* containing_view,
 #endif
                               int origin_x,
                               int origin_y,
@@ skipping 15 matching lines @@
   complete_bounds.set_x(containing_view->GetMirroredXForRect(complete_bounds));
 #endif
 
   // Start at zero opacity, then loop back and forth five times before ending
   // at full opacity.
   double opacity = sin(
       (1.0 - animation_progress) * PI * kCompleteAnimationCycles + PI/2) / 2 +
           0.5;
 
   canvas->SaveLayerAlpha(static_cast<int>(255.0 * opacity), complete_bounds);
-  canvas->AsCanvasSkia()->drawARGB(0, 255, 255, 255, SkXfermode::kClear_Mode);
+  canvas->GetSkCanvas()->drawARGB(0, 255, 255, 255, SkXfermode::kClear_Mode);
   canvas->DrawBitmapInt(*complete, complete_bounds.x(), complete_bounds.y());
   canvas->Restore();
 }
 
 // Load a language dependent height so that the dangerous download confirmation
 // message doesn't overlap with the download link label.
 int GetBigProgressIconSize() {
   static int big_progress_icon_size = 0;
   if (big_progress_icon_size == 0) {
     string16 locale_size_str =
@@ skipping 239 matching lines @@
   return DownloadFile::GetUniquePathNumberWithSuffix(
       path, FILE_PATH_LITERAL(".crdownload"));
 }
 
 FilePath GetCrDownloadPath(const FilePath& suggested_path) {
   return DownloadFile::AppendSuffixToPath(
       suggested_path, FILE_PATH_LITERAL(".crdownload"));
 }
 
 }  // namespace download_util