visual studio compile fix

chrome/browser/ui/webui/ntp/app_launcher_handler.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/webui/ntp/app_launcher_handler.h"
 
 #include <string>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 701 matching lines @@
 }
 
 void AppLauncherHandler::HandleRecordAppLaunchByURL(
     const base::ListValue* args) {
   std::string url;
   CHECK(args->GetString(0, &url));
   double source;
   CHECK(args->GetDouble(1, &source));
 
   extension_misc::AppLaunchBucket bucket =
-      static_cast<extension_misc::AppLaunchBucket>(source);
+      static_cast<extension_misc::AppLaunchBucket>(static_cast<int>(source));
   CHECK(source < extension_misc::APP_LAUNCH_BUCKET_BOUNDARY);
 
   RecordAppLaunchByURL(web_ui_->GetProfile(), url, bucket);
 }
 
 void AppLauncherHandler::OnFaviconForApp(FaviconService::Handle handle,
                                          history::FaviconData data) {
   scoped_ptr<WebApplicationInfo> web_app(
       favicon_consumer_.GetClientDataForCurrentRequest());
   CHECK(!web_app->icons.empty());
@@ skipping 168 matching lines @@
 
 void AppLauncherHandler::UninstallDefaultApps() {
   AppsPromo* apps_promo = extension_service_->apps_promo();
   const ExtensionIdSet& app_ids = apps_promo->old_default_apps();
   for (ExtensionIdSet::const_iterator iter = app_ids.begin();
        iter != app_ids.end(); ++iter) {
     if (extension_service_->GetExtensionById(*iter, true))
       extension_service_->UninstallExtension(*iter, false, NULL);
   }
 }