Allow extensions to remove and override the bookmark shortcut key

chrome/browser/ui/views/accelerator_utils_aura.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/host_desktop.h"
 #include "chrome/browser/ui/views/accelerator_table.h"
 #include "ui/base/accelerators/accelerator.h"
 
 #if defined(USE_ASH)
 #include "ash/accelerators/accelerator_table.h"
 #endif  // USE_ASH
 
 namespace chrome {
 
 bool IsChromeAccelerator(const ui::Accelerator& accelerator, Profile* profile) {
@@ skipping 12 matching lines @@
   for (std::vector<chrome::AcceleratorMapping>::const_iterator it =
        accelerators.begin(); it != accelerators.end(); ++it) {
     if (it->keycode == accelerator.key_code() &&
         it->modifiers == accelerator.modifiers())
       return true;
   }
 
   return false;
 }
 
+ui::Accelerator GetPrimaryChromeAcceleratorForCommandId(int command_id) {
+  ui::Accelerator accelerator;
+  // GetAshAcceleratorForCommandId with HOST_DESKTOP_TYPE_ASH is used so we can
+  // find Ash accelerators if Ash is supported on this platform, even if it's
+  // not currently in use.
+  if (GetStandardAcceleratorForCommandId(command_id, &accelerator) ||
+      GetAshAcceleratorForCommandId(command_id,
+                                    HOST_DESKTOP_TYPE_ASH,
+                                    &accelerator)) {
+    return accelerator;
+  }
+
+  std::vector<chrome::AcceleratorMapping> accelerators =
+      chrome::GetAcceleratorList();
+  for (size_t i = 0; i < accelerators.size(); ++i) {
+    if (accelerators[i].command_id == command_id) {
+      return ui::Accelerator(accelerators[i].keycode,
+                             accelerators[i].modifiers);
+    }
+  }
+
+  return ui::Accelerator();
+}
+
 }  // namespace chrome