display_compositor: Move CompositorOverlayCandidateValidator from content.

components/display_compositor.gypi

 # Copyright 2016 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.
 
 {
   'targets': [
     {
       # GN version: //components/display_compositor:display_compositor
       'target_name': 'display_compositor',
       'type': '<(component)',
       'dependencies': [
         '../base/base.gyp:base',
+        '../cc/cc.gyp:cc',
         '../gpu/gpu.gyp:command_buffer_client',
         '../gpu/gpu.gyp:command_buffer_common',
         '../skia/skia.gyp:skia',
         '../third_party/khronos/khronos.gyp:khronos_headers',
         '../ui/gfx/gfx.gyp:gfx',
         '../ui/gfx/gfx.gyp:gfx_geometry',
         '../ui/gl/gl.gyp:gl',
       ],
 
       'defines': [
         'DISPLAY_COMPOSITOR_IMPLEMENTATION',
       ],
 
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [4267, ],
 
       'include_dirs': [
         '..',
       ],
 
       'sources': [
         'display_compositor/buffer_queue.cc',
         'display_compositor/buffer_queue.h',
+        'display_compositor/compositor_overlay_candidate_validator.h',
+        'display_compositor/compositor_overlay_candidate_validator_android.cc',
+        'display_compositor/compositor_overlay_candidate_validator_android.h',
+        'display_compositor/compositor_overlay_candidate_validator_mac.h',
+        'display_compositor/compositor_overlay_candidate_validator_mac.mm',
+        'display_compositor/compositor_overlay_candidate_validator_ozone.cc',
+        'display_compositor/compositor_overlay_candidate_validator_ozone.h',
         'display_compositor/display_compositor_export.h',
         'display_compositor/gl_helper.cc',
         'display_compositor/gl_helper.h',
         'display_compositor/gl_helper_readback_support.cc',
         'display_compositor/gl_helper_readback_support.h',
         'display_compositor/gl_helper_scaling.cc',
         'display_compositor/gl_helper_scaling.h',
       ]
     },
     {
@@ skipping 47 matching lines @@
 
       'sources': [
         "display_compositor/display_compositor_test_suite.cc",
         "display_compositor/display_compositor_test_suite.h",
         "display_compositor/gl_helper_benchmark.cc",
         "display_compositor/run_all_unittests.cc",
       ]
     },
   ]
 }