Generalize ExtensionIconSet to store icon paths for custom size sets

chrome/browser/extensions/extension_web_ui.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/extension_web_ui.h"
 
 #include <set>
 #include <vector>
 
 #include "base/string_util.h"
@@ skipping 79 matching lines @@
     // Even when the extensions service is enabled by default, it's still
     // disabled in incognito mode.
     ExtensionService* service = profile->GetExtensionService();
     if (service)
       extension_ = service->extensions()->GetByID(page_url.host());
   }
 
   void Init() {
     if (extension_) {
       ExtensionResource icon_resource =
-          extension_->GetIconResource(ExtensionIconSet::EXTENSION_ICON_BITTY,
+          extension_->GetIconResource(extension_misc::EXTENSION_ICON_BITTY,
                                       ExtensionIconSet::MATCH_EXACTLY);
 
       tracker_.LoadImage(extension_, icon_resource,
                          gfx::Size(gfx::kFaviconSize, gfx::kFaviconSize),
                          ImageLoadingTracker::DONT_CACHE);
     } else {
       ForwardResult(NULL);
     }
   }
 
@@ skipping 310 matching lines @@
 }
 
 // static
 void ExtensionWebUI::GetFaviconForURL(Profile* profile,
     FaviconService::GetFaviconRequest* request, const GURL& page_url) {
   // tracker deletes itself when done.
   ExtensionWebUIImageLoadingTracker* tracker =
       new ExtensionWebUIImageLoadingTracker(profile, request, page_url);
   tracker->Init();
 }