Make some updates to extension iconography.

chrome/browser/extensions/context_menu_matcher.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/extensions/context_menu_matcher.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/extensions/extension_util.h"
@@ skipping 290 matching lines @@
   }
   return NULL;
 }
 
 void ContextMenuMatcher::SetExtensionIcon(const std::string& extension_id) {
   MenuManager* menu_manager = MenuManager::Get(browser_context_);
 
   int index = menu_model_->GetItemCount() - 1;
   DCHECK_GE(index, 0);
 
-  const SkBitmap& icon = menu_manager->GetIconForExtension(extension_id);
-  DCHECK(icon.width() == gfx::kFaviconSize);
-  DCHECK(icon.height() == gfx::kFaviconSize);
-
-  menu_model_->SetIcon(index, gfx::Image::CreateFrom1xBitmap(icon));
+  gfx::Image icon = menu_manager->GetIconForExtension(extension_id);
+  DCHECK_EQ(gfx::kFaviconSize, icon.Width());
+  DCHECK_EQ(gfx::kFaviconSize, icon.Height());
+  menu_model_->SetIcon(index, icon);
 }
 
 }  // namespace extensions