AcceleratorProvider: Make GetAcceleratorForCommandId const.

chrome/browser/renderer_context_menu/render_view_context_menu_test_util.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 <string>
 #include <vector>
 
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 19 matching lines @@
   params.link_url = link_url;
   params.frame_url = frame_url;
   TestRenderViewContextMenu* menu =
       new TestRenderViewContextMenu(web_contents->GetMainFrame(), params);
   menu->Init();
   return menu;
 }
 
 bool TestRenderViewContextMenu::GetAcceleratorForCommandId(
     int command_id,
-    ui::Accelerator* accelerator) {
+    ui::Accelerator* accelerator) const {
   // None of our commands have accelerators, so always return false.
   return false;
 }
 
 bool TestRenderViewContextMenu::IsItemPresent(int command_id) {
   return menu_model_.GetIndexOfCommandId(command_id) != -1;
 }
 
 bool TestRenderViewContextMenu::IsItemInRangePresent(int command_id_first,
                                                      int command_id_last) {
@@ skipping 34 matching lines @@
     const base::FilePath& path) {
   size_t count = profile_link_paths_.size();
   for (size_t i = 0; i < count; ++i)
     if (profile_link_paths_[i] == path)
       return IDC_OPEN_LINK_IN_PROFILE_FIRST + static_cast<int>(i);
   return -1;
 }
 
 void TestRenderViewContextMenu::Show() {
 }