AcceleratorProvider: Make GetAcceleratorForCommandId const.

chrome/browser/ui/views/toolbar/toolbar_view.cc

 // Copyright 2013 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/views/toolbar/toolbar_view.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/i18n/number_formatting.h"
@@ skipping 445 matching lines @@
 #endif
     default:
       NOTREACHED();
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ToolbarView, ui::AcceleratorProvider implementation:
 
 bool ToolbarView::GetAcceleratorForCommandId(int command_id,
-    ui::Accelerator* accelerator) {
+    ui::Accelerator* accelerator) const {
   return GetWidget()->GetAccelerator(command_id, accelerator);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ToolbarView, views::View overrides:
 
 gfx::Size ToolbarView::GetPreferredSize() const {
   return GetSizeInternal(&View::GetPreferredSize);
 }
 
@@ skipping 320 matching lines @@
   SchedulePaint();
 }
 
 int ToolbarView::content_shadow_height() const {
 #if defined(USE_ASH)
   return GetLayoutConstant(TOOLBAR_CONTENT_SHADOW_HEIGHT_ASH);
 #else
   return GetLayoutConstant(TOOLBAR_CONTENT_SHADOW_HEIGHT);
 #endif
 }