Allow extensions to remove and override the bookmark shortcut key

chrome/browser/ui/gtk/accelerator_utils_gtk.cc

 // Copyright (c) 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/profiles/profile.h"
 #include "chrome/browser/ui/gtk/accelerators_gtk.h"
 #include "ui/base/accelerators/accelerator.h"
 
 namespace chrome {
 
 bool IsChromeAccelerator(const ui::Accelerator& accelerator, Profile* profile) {
   AcceleratorsGtk* accelerators = AcceleratorsGtk::GetInstance();
   for (AcceleratorsGtk::const_iterator iter = accelerators->begin();
        iter != accelerators->end(); ++iter) {
     if (iter->second.key_code() == accelerator.key_code() &&
         iter->second.modifiers() == accelerator.modifiers())
       return true;
   }
 
   return false;
 }
 
+ui::Accelerator GetPrimaryChromeAcceleratorForCommandId(int command_id) {
+  AcceleratorsGtk* accelerators = AcceleratorsGtk::GetInstance();
+  const ui::Accelerator* accelerator =
+      accelerators->GetPrimaryAcceleratorForCommand(command_id);
+
+  return accelerator ? *accelerator : ui::Accelerator();
+}
+
 }  // namespace chrome