Reland of Android: support multiple displays on C++ side

ui/android/BUILD.gn

 # Copyright 2015 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/android/rules.gni")
 import("//testing/test.gni")
 
 assert(is_android)
 
 component("android") {
@@ skipping 44 matching lines @@
     "//ui/display",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 }
 
 generate_jni("ui_android_jni_headers") {
   sources = [
     "java/src/org/chromium/ui/base/ViewAndroidDelegate.java",
     "java/src/org/chromium/ui/base/WindowAndroid.java",
+    "java/src/org/chromium/ui/display/DisplayAndroidManager.java",
     "java/src/org/chromium/ui/resources/ResourceManager.java",
   ]
   jni_package = "ui_android"
 }
 
 java_cpp_enum("java_enums_srcjar") {
   sources = [
     "../base/ime/text_input_type.h",
     "../base/page_transition_types.h",
     "../base/touch/touch_device.h",
@@ skipping 179 matching lines @@
     "//cc",
     "//cc:test_support",
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/base",
     "//ui/gfx",
     "//ui/resources:ui_test_pak",
   ]
 }