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

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

 // 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_ACTION_PLATFORM_DELEGATE_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_ACTION_PLATFORM_DELEGATE_COCOA_H_
 
 #include "base/mac/scoped_nsobject.h"
 #include "chrome/browser/ui/extensions/extension_action_platform_delegate.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 @class ExtensionPopupController;
 class ToolbarActionViewDelegateCocoa;
 
-// The cocoa-specific implementation for ExtensionActionPlatformDelegate.
+// The Cocoa-specific implementation for ExtensionActionPlatformDelegate.
 class ExtensionActionPlatformDelegateCocoa
     : public ExtensionActionPlatformDelegate,
       public content::NotificationObserver {
  public:
   ExtensionActionPlatformDelegateCocoa(
       ExtensionActionViewController* controller);
   ~ExtensionActionPlatformDelegateCocoa() override;
 
  private:
   // ExtensionActionPlatformDelegate:
@@ skipping 10 matching lines @@
       bool grant_tab_permissions) override;
 
   // content::NotificationObserver:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // Returns the popup shown by this extension action, if one exists.
   ExtensionPopupController* GetPopup() const;
 
-  // Returns the delegate in its cocoa implementation.
+  // Returns the delegate in its Cocoa implementation.
   ToolbarActionViewDelegateCocoa* GetDelegateCocoa();
 
   // The main controller for this extension action.
   ExtensionActionViewController* controller_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionActionPlatformDelegateCocoa);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_ACTION_PLATFORM_DELEGATE_COCOA_H_