Remove unused headers after CL 609833003

chrome/browser/ui/cocoa/version_independent_window.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/version_independent_window.h"
 
-#include "base/command_line.h"
 #include "base/logging.h"
-#include "base/mac/mac_util.h"
-#include "chrome/common/chrome_switches.h"
 
 @interface VersionIndependentWindow ()
 
 + (BOOL)shouldUseFullSizeContentViewForStyle:(NSUInteger)windowStyle;
 
 - (NSView*)chromeWindowView;
 
 @end
 
 // This view always takes the size of its superview. It is intended to be used
@@ skipping 103 matching lines @@
   return [super contentRectForFrameRect:fRect styleMask:aStyle];
 }
 
 - (NSRect)contentRectForFrameRect:(NSRect)frameRect {
   if (chromeWindowView_)
     return frameRect;
   return [super contentRectForFrameRect:frameRect];
 }
 
 @end