Use correct favicon scale factor on Android.

content/common/android/device_info.h

-// Copyright (c) 2012 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.
-
-#ifndef CONTENT_COMMON_ANDROID_DEVICE_INFO_H_
-#define CONTENT_COMMON_ANDROID_DEVICE_INFO_H_
-
-#include <jni.h>
-#include <string>
-
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-
-namespace content {
-
-// Facilitates access to device information typically only
-// available using the Android SDK, including Display properties.
-class DeviceInfo {
- public:
-  DeviceInfo();
-  ~DeviceInfo();
-
-  int GetHeight();
-  int GetWidth();
-  int GetBitsPerPixel();
-  int GetBitsPerComponent();
-  double GetDPIScale();
-  double GetRefreshRate();
-  std::string GetNetworkCountryIso();
-
- private:
-  base::android::ScopedJavaGlobalRef<jobject> j_device_info_;
-
-  DISALLOW_COPY_AND_ASSIGN(DeviceInfo);
-};
-
-bool RegisterDeviceInfo(JNIEnv* env);
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_ANDROID_DEVICE_INFO_H_