mac: Remove now-unneeded includes of cocoa_protocols.h

chrome/browser/ui/cocoa/animatable_view.h

 // Copyright (c) 2011 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_ANIMATABLE_VIEW_H_
 #define CHROME_BROWSER_UI_COCOA_ANIMATABLE_VIEW_H_
 
 #import <Cocoa/Cocoa.h>
 
-#import "base/mac/cocoa_protocols.h"
 #include "base/memory/scoped_nsobject.h"
 #import "chrome/browser/ui/cocoa/background_gradient_view.h"
 #import "chrome/browser/ui/cocoa/view_resizer.h"
 
 // A view that provides an animatable height property.  Provides methods to
 // animate to a new height, set a new height immediately, or cancel any running
 // animations.
 //
 // AnimatableView sends an |animationDidEnd:| message to its delegate when the
 // animation ends normally and an |animationDidStop:| message when the animation
@@ skipping 28 matching lines @@
 // Cancels any running animations, leaving the view at its current
 // (mid-animation) height.
 - (void)stopAnimation;
 
 // Gets the progress of any current animation.
 - (NSAnimationProgress)currentAnimationProgress;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_ANIMATABLE_VIEW_H_