GuestViews should be able to specify task manager entries

chrome/browser/guest_view/app_view/chrome_app_view_guest_delegate.cc

 // Copyright 2014 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/guest_view/app_view/chrome_app_view_guest_delegate.h"
 #include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
+#include "chrome/browser/task_manager/task_manager_util.h"
+#include "chrome/grit/generated_resources.h"
 #include "components/renderer_context_menu/context_menu_delegate.h"
 
 namespace extensions {
 
-ChromeAppViewGuestDelegate::ChromeAppViewGuestDelegate() {
+ChromeAppViewGuestDelegate::ChromeAppViewGuestDelegate(
+  extensions::AppViewGuest* app_view_guest)
+    : AppViewGuestDelegate(app_view_guest) {
 }
 
 ChromeAppViewGuestDelegate::~ChromeAppViewGuestDelegate() {
 }
 
+int ChromeAppViewGuestDelegate::GetTaskPrefix() const {
+  return IDS_TASK_MANAGER_APPVIEW_TAG_PREFIX;
+}
+
 bool ChromeAppViewGuestDelegate::HandleContextMenu(
     content::WebContents* web_contents,
     const content::ContextMenuParams& params) {
   ContextMenuDelegate* menu_delegate =
       ContextMenuDelegate::FromWebContents(web_contents);
   DCHECK(menu_delegate);
 
   scoped_ptr<RenderViewContextMenu> menu =
       menu_delegate->BuildMenu(web_contents, params);
   menu_delegate->ShowMenu(menu.Pass());
   return true;
 }
 
 }  // namespace extensions