[WIP] Add Chromium-side support for the Screen Orientation API

content/browser/screen_orientation/screen_orientation_provider_android.h

+// 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.
+
+#ifndef CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_ANDROID_H_
+#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_ANDROID_H_
+
+#include "base/android/jni_android.h"
+#include "content/port/browser/screen_orientation_provider.h"
+
+namespace content {
+
+class ScreenOrientationProviderAndroid : public ScreenOrientationProvider {
+ public:
+  ScreenOrientationProviderAndroid();
+
+  static bool Register(JNIEnv* env);
+ private:
+
+  virtual bool LockOrientation(Orientations) OVERRIDE;
+  virtual void UnlockOrientation() OVERRIDE;
+
+  virtual ~ScreenOrientationProviderAndroid();
+
+  base::android::ScopedJavaGlobalRef<jobject> j_orientation_provider_;
+};
+
+}  // namespace content
+
+#endif // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_ANDROID_H_