Remove code used by --disable-delegated-renderer on Mac

content/content_browser.gypi

 # 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
     '../net/net.gyp:net',
@@ skipping 894 matching lines @@
       'browser/renderer_data_memoizing_store.h',
       'browser/renderer_host/clipboard_message_filter.cc',
       'browser/renderer_host/clipboard_message_filter.h',
       'browser/renderer_host/clipboard_message_filter_mac.mm',
       'browser/renderer_host/compositing_iosurface_context_mac.h',
       'browser/renderer_host/compositing_iosurface_context_mac.mm',
       'browser/renderer_host/compositing_iosurface_layer_mac.h',
       'browser/renderer_host/compositing_iosurface_layer_mac.mm',
       'browser/renderer_host/compositing_iosurface_mac.h',
       'browser/renderer_host/compositing_iosurface_mac.mm',
-      'browser/renderer_host/compositing_iosurface_shader_programs_mac.cc',
-      'browser/renderer_host/compositing_iosurface_shader_programs_mac.h',
-      'browser/renderer_host/compositing_iosurface_transformer_mac.cc',
-      'browser/renderer_host/compositing_iosurface_transformer_mac.h',
       'browser/renderer_host/compositor_impl_android.cc',
       'browser/renderer_host/compositor_impl_android.h',
       'browser/renderer_host/compositor_resize_lock_aura.cc',
       'browser/renderer_host/compositor_resize_lock_aura.h',
       'browser/renderer_host/database_message_filter.cc',
       'browser/renderer_host/database_message_filter.h',
       'browser/renderer_host/delegated_frame_evictor.cc',
       'browser/renderer_host/delegated_frame_evictor.h',
       'browser/renderer_host/dip_util.cc',
       'browser/renderer_host/dip_util.h',
@@ skipping 945 matching lines @@
       'sources': [
         'browser/media/cdm/browser_cdm_manager.cc',
         'browser/media/cdm/browser_cdm_manager.h',
         # This works on Android because enable_browser_cdms==1 on Android.
         'browser/media/media_web_contents_observer.cc',
         'browser/media/media_web_contents_observer.h',
       ],
     }],
   ],
 }