AcceleratorProvider: Make GetAcceleratorForCommandId const.

chrome/browser/ui/toolbar/app_menu_model.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/ui/toolbar/app_menu_model.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/command_line.h"
@@ skipping 153 matching lines @@
   // instead of enabling/disabling the top-level menu item, the submenu's
   // contents get disabled, per Apple's HIG.
 #if defined(OS_MACOSX)
   enabled &= chrome::IsCommandEnabled(browser_, IDC_ENCODING_MENU);
 #endif
   return enabled;
 }
 
 bool EncodingMenuModel::GetAcceleratorForCommandId(
     int command_id,
-    ui::Accelerator* accelerator) {
+    ui::Accelerator* accelerator) const {
   return false;
 }
 
 void EncodingMenuModel::ExecuteCommand(int command_id, int event_flags) {
   chrome::ExecuteCommand(browser_, command_id);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ZoomMenuModel
 
@@ skipping 529 matching lines @@
     case IDC_BOOKMARK_PAGE:
       return !chrome::ShouldRemoveBookmarkThisPageUI(browser_->profile());
     case IDC_BOOKMARK_ALL_TABS:
       return !chrome::ShouldRemoveBookmarkOpenPagesUI(browser_->profile());
 #endif
     default:
       return true;
   }
 }
 
-bool AppMenuModel::GetAcceleratorForCommandId(int command_id,
-                                              ui::Accelerator* accelerator) {
+bool AppMenuModel::GetAcceleratorForCommandId(
+    int command_id,
+    ui::Accelerator* accelerator) const {
   return provider_->GetAcceleratorForCommandId(command_id, accelerator);
 }
 
 void AppMenuModel::ActiveTabChanged(WebContents* old_contents,
                                     WebContents* new_contents,
                                     int index,
                                     int reason) {
   // The user has switched between tabs and the new tab may have a different
   // zoom setting.
   UpdateZoomControls();
@@ skipping 203 matching lines @@
                        browser_->tab_strip_model()->GetActiveWebContents())
                        ->GetZoomPercent();
   }
   zoom_label_ = base::FormatPercent(zoom_percent);
 }
 
 void AppMenuModel::OnZoomLevelChanged(
     const content::HostZoomMap::ZoomLevelChange& change) {
   UpdateZoomControls();
 }