Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/gfx/BUILD.gn

 # Copyright 2014 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")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
@@ skipping 47 matching lines @@
     "display_change_notifier.cc",
     "display_change_notifier.h",
     "display_observer.cc",
     "display_observer.h",
     "frame_time.h",
     "gpu_memory_buffer.cc",
     "gpu_memory_buffer.h",
     "hud_font.cc",
     "hud_font.h",
     "native_widget_types.h",
+    "screen.cc",
+    "screen.h",
+    "screen_android.cc",
+    "screen_stub.cc",
+    "screen_type_delegate.h",
     "sequential_id_generator.cc",
     "sequential_id_generator.h",
     "shadow_value.cc",
     "shadow_value.h",
     "skia_util.cc",
     "skia_util.h",
     "transform.cc",
     "transform.h",
     "transform_util.cc",
     "transform_util.h",
@@ skipping 26 matching lines @@
     "//base",
     "//skia",
     "//third_party/icu",
   ]
 
   # Android.
   if (is_android) {
     sources -= [
       "animation/throb_animation.cc",
       "display_observer.cc",
+      "screen_stub.cc",
     ]
 
     # TODO(jdduke): Revisit optimization after gauging benefit, crbug/419051.
     if (!is_debug) {
       configs -= [ "//build/config/compiler:optimize" ]
       configs += [ "//build/config/compiler:optimize_max" ]
     }
 
     deps += [ ":gfx_jni_headers" ]
     libs = [
@@ skipping 102 matching lines @@
 if (is_android) {
   generate_jni("gfx_jni_headers") {
     sources = [
       "../android/java/src/org/chromium/ui/gfx/BitmapHelper.java",
       "../android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java",
       "../android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java",
     ]
     jni_package = "gfx"
   }
 }