Move gl_helper to content/browser/compositor

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',
     '../cc/cc.gyp:cc',
     '../cc/cc.gyp:cc_surfaces',
     '../components/mime_util/mime_util.gyp:mime_util',
@@ skipping 520 matching lines @@
       'browser/child_process_launcher.h',
       'browser/child_process_security_policy_impl.cc',
       'browser/child_process_security_policy_impl.h',
       'browser/cocoa/system_hotkey_helper_mac.h',
       'browser/cocoa/system_hotkey_helper_mac.mm',
       'browser/cocoa/system_hotkey_map.h',
       'browser/cocoa/system_hotkey_map.mm',
       # NOTE: These files are here instead of in compositor_browser_sources
       # because the latter is not built on Android, whereas these files are
       # needed on all platforms.
+      'browser/compositor/gl_helper.cc',
+      'browser/compositor/gl_helper.h',
+      'browser/compositor/gl_helper_readback_support.cc',
+      'browser/compositor/gl_helper_readback_support.h',
+      'browser/compositor/gl_helper_scaling.cc',
+      'browser/compositor/gl_helper_scaling.h',
       'browser/compositor/surface_utils.cc',
       'browser/compositor/surface_utils.h',
       'browser/device_sensors/ambient_light_mac.cc',
       'browser/device_sensors/ambient_light_mac.h',
       'browser/device_sensors/data_fetcher_shared_memory.h',
       'browser/device_sensors/data_fetcher_shared_memory_android.cc',
       'browser/device_sensors/data_fetcher_shared_memory_base.cc',
       'browser/device_sensors/data_fetcher_shared_memory_base.h',
       'browser/device_sensors/data_fetcher_shared_memory_chromeos.cc',
       'browser/device_sensors/data_fetcher_shared_memory_default.cc',
@@ skipping 1655 matching lines @@
     ['enable_webvr==1 and OS=="android"', {
       'sources': [
         'browser/vr/android/cardboard/cardboard_vr_device.cc',
         'browser/vr/android/cardboard/cardboard_vr_device.h',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.cc',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.h',
       ],
     }],
   ],
 }