Add DeviceDisplayInfo getter in WindowAndroid.

ui/android/window_android.cc

 // Copyright 2013 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.
 
 #include "ui/android/window_android.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/jni_weak_ref.h"
 #include "base/android/scoped_java_ref.h"
 #include "jni/WindowAndroid_jni.h"
 #include "ui/android/window_android_compositor.h"
 #include "ui/android/window_android_observer.h"
+#include "ui/gfx/android/device_display_info.h"
 
 namespace ui {
 
 using base::android::AttachCurrentThread;
 using base::android::ScopedJavaLocalRef;
 
-WindowAndroid::WindowAndroid(JNIEnv* env, jobject obj) : compositor_(NULL) {
-  java_window_.Reset(env, obj);
-}
+WindowAndroid::WindowAndroid(JNIEnv* env, jobject obj)
+    : java_window_(env, obj),
+      compositor_(NULL),
+      // TODO(gsennton) have our device display info depend on our (java)
+      // display context
+      device_display_info_(new gfx::DeviceDisplayInfo()) {}
 
 void WindowAndroid::Destroy(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   delete this;
 }
 
 ScopedJavaLocalRef<jobject> WindowAndroid::GetJavaObject() {
   return base::android::ScopedJavaLocalRef<jobject>(java_window_);
 }
 
 bool WindowAndroid::RegisterWindowAndroid(JNIEnv* env) {
@@ skipping 100 matching lines @@
 }
 
 bool WindowAndroid::CanRequestPermission(const std::string& permission) {
   JNIEnv* env = AttachCurrentThread();
   return Java_WindowAndroid_canRequestPermission(
       env,
       GetJavaObject().obj(),
       base::android::ConvertUTF8ToJavaString(env, permission).obj());
 }
 
+const gfx::DeviceDisplayInfo& WindowAndroid::GetDeviceDisplayInfo() const {
+  return *device_display_info_;
+}
+
 // ----------------------------------------------------------------------------
 // Native JNI methods
 // ----------------------------------------------------------------------------
 
 jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   WindowAndroid* window = new WindowAndroid(env, obj);
   return reinterpret_cast<intptr_t>(window);
 }
 
 }  // namespace ui