Port Extension Commands to Mac.

chrome/browser/extensions/api/commands/command_service.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/extensions/api/commands/command_service.h"
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_keybinding_registry.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 107 matching lines @@
   if (accelerator.key_code() == ui::VKEY_UNKNOWN)
     return false;
 
   DictionaryPrefUpdate updater(profile_->GetPrefs(),
                                prefs::kExtensionCommands);
   DictionaryValue* bindings = updater.Get();
 
   std::string key = GetPlatformKeybindingKeyForAccelerator(accelerator);
 
   if (!allow_overrides && bindings->HasKey(key))
-      return false;  // Already taken.
+    return false;  // Already taken.
 
   DictionaryValue* keybinding = new DictionaryValue();
   keybinding->SetString(kExtension, extension_id);
   keybinding->SetString(kCommandName, command_name);
 
   bindings->Set(key, keybinding);
 
   std::pair<const std::string, const std::string> details =
       std::make_pair(extension_id, command_name);
   content::NotificationService::current()->Notify(
@@ skipping 188 matching lines @@
     return false;
 
   *command = *requested_command;
   if (shortcut_assigned.key_code() != ui::VKEY_UNKNOWN)
     command->set_accelerator(shortcut_assigned);
 
   return true;
 }
 
 }  // namespace extensions