display_compositor: Move CompositorOverlayCandidateValidator from content.

components/display_compositor/BUILD.gn

 # 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.
 
+import("//build/config/ui.gni")
 import("//testing/test.gni")
 
 component("display_compositor") {
   sources = [
     "buffer_queue.cc",
     "buffer_queue.h",
+    "compositor_overlay_candidate_validator.h",
     "display_compositor_export.h",
     "gl_helper.cc",
     "gl_helper.h",
     "gl_helper_readback_support.cc",
     "gl_helper_readback_support.h",
     "gl_helper_scaling.cc",
     "gl_helper_scaling.h",
   ]
 
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   defines = [ "DISPLAY_COMPOSITOR_IMPLEMENTATION" ]
 
   deps = [
     "//base",
     "//cc",
     "//gpu/command_buffer/client",
     "//gpu/command_buffer/client:gles2_interface",
     "//gpu/command_buffer/common",
     "//skia",
     "//ui/gfx",
   ]
+
+  if (is_mac) {
+    sources += [
+      "compositor_overlay_candidate_validator_mac.h",
+      "compositor_overlay_candidate_validator_mac.mm",
+    ]
+  }
+
+  if (is_android) {
+    sources += [
+      "compositor_overlay_candidate_validator_android.cc",
+      "compositor_overlay_candidate_validator_android.h",
+    ]
+  }
+
+  if (use_ozone) {
+    sources += [
+      "compositor_overlay_candidate_validator_ozone.cc",
+      "compositor_overlay_candidate_validator_ozone.h",
+    ]
+
+    deps += [ "//ui/ozone" ]
+  }
 }
 
 test("display_compositor_unittests") {
   sources = [
     "buffer_queue_unittest.cc",
     "display_compositor_test_suite.cc",
     "display_compositor_test_suite.h",
     "gl_helper_unittest.cc",
     "run_all_unittests.cc",
     "yuv_readback_unittest.cc",
@@ skipping 49 matching lines @@
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/gl:test_support",
   ]
 
   data_deps = [
     "//third_party/mesa:osmesa",
   ]
 }