Optionally clear PlatformCanvas instances.

chrome/browser/profiles/profile_shortcut_manager_win.cc

 // Copyright (c) 2012 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/profiles/profile_shortcut_manager_win.h"
 
 #include "base/bind.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 81 matching lines @@
       *source_bitmap,
       skia::ImageOperations::RESIZE_LANCZOS3,
       kProfileAvatarShortcutBadgeWidth,
       kProfileAvatarShortcutBadgeHeight);
 
   // Overlay the avatar on the icon, anchoring it to the bottom-right of the
   // icon.
   scoped_ptr<SkCanvas> offscreen_canvas(
       skia::CreateBitmapCanvas(app_icon_bitmap->width(),
                                app_icon_bitmap->height(),
-                               false));
+                               skia::PlatformDevice::FLAGS_NONE));
   DCHECK(offscreen_canvas.get());
   offscreen_canvas->drawBitmap(*app_icon_bitmap, 0, 0);
   offscreen_canvas->drawBitmap(
       sk_icon,
       app_icon_bitmap->width() - kProfileAvatarShortcutBadgeWidth,
       app_icon_bitmap->height() - kProfileAvatarShortcutBadgeHeight);
   const SkBitmap& final_bitmap =
       offscreen_canvas->getDevice()->accessBitmap(false);
 
   // Finally, write the .ico file containing this new bitmap.
@@ skipping 308 matching lines @@
   shortcuts.reserve(profile_names.size());
   for (std::vector<string16>::const_iterator it = profile_names.begin();
        it != profile_names.end();
        ++it) {
     string16 shortcut;
     if (ShellUtil::GetChromeShortcutName(dist, false, *it, &shortcut))
       shortcuts.push_back(shortcut);
   }
   return shortcuts;
 }