[Blink>Media] Add heuristic for dominant video detection for Android

third_party/WebKit/Source/core/html/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/split_static_library.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 
 blink_core_sources("html") {
   split_count = 5
 
@@ skipping 206 matching lines @@
     "LinkManifest.cpp",
     "LinkManifest.h",
     "LinkRelAttribute.cpp",
     "LinkRelAttribute.h",
     "LinkResource.cpp",
     "LinkResource.h",
     "LinkStyle.cpp",
     "LinkStyle.h",
     "ListedElement.cpp",
     "ListedElement.h",
+    "MediaCustomControlsFullscreenDetector.cpp",
+    "MediaCustomControlsFullscreenDetector.h",
     "MediaDocument.cpp",
     "MediaDocument.h",
     "MediaError.h",
     "MediaFragmentURIParser.cpp",
     "MediaFragmentURIParser.h",
     "PluginDocument.cpp",
     "PluginDocument.h",
     "PublicURLManager.cpp",
     "PublicURLManager.h",
     "RadioNodeList.cpp",
@@ skipping 273 matching lines @@
     "track/vtt/VTTToken.h",
     "track/vtt/VTTTokenizer.cpp",
     "track/vtt/VTTTokenizer.h",
   ]
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }