Capitalize "Cocoa" in c/b/ui/cocoa/extensions/.

chrome/browser/ui/cocoa/extensions/extension_action_platform_delegate_cocoa.mm

 // Copyright 2014 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.
 
 #import "chrome/browser/ui/cocoa/extensions/extension_action_platform_delegate_cocoa.h"
 
 #include <string>
 #include <utility>
 
 #include "base/logging.h"
@@ skipping 45 matching lines @@
   ExtensionPopupController* popup = GetPopup();
   return popup != nil ? [popup view] : nil;
 }
 
 bool ExtensionActionPlatformDelegateCocoa::IsMenuRunning() const {
   // TODO(devlin): Also account for context menus.
   return GetPopup() != nil;
 }
 
 void ExtensionActionPlatformDelegateCocoa::RegisterCommand() {
-  // Commands are handled elsewhere for cocoa.
+  // Commands are handled elsewhere for Cocoa.
 }
 
 void ExtensionActionPlatformDelegateCocoa::OnDelegateSet() {
   registrar_.Add(
       this,
       extensions::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE,
       content::Source<Profile>(controller_->browser()->profile()));
   registrar_.Add(
       this,
       GetNotificationTypeForAction(*controller_->extension_action()),
@@ skipping 78 matching lines @@
           controller_->IsEnabled(
               controller_->view_delegate()->GetCurrentWebContents())) {
         controller_->ExecuteAction(true);
       }
       break;
     }
     default:
       NOTREACHED() << L"Unexpected notification";
   }
 }