Export ScreenOrientationProvider

content/browser/screen_orientation/screen_orientation_provider.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_H_
-#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_
-
-#include "base/macros.h"
-#include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h"
-
-namespace content {
-
-class ScreenOrientationDispatcherHost;
-class WebContents;
-
-// Interface that needs to be implemented by any backend that wants to handle
-// screen orientation lock/unlock.
-class ScreenOrientationProvider {
- public:
-  // Lock the screen orientation to |orientations|.
-  virtual void LockOrientation(
-      int request_id,
-      blink::WebScreenOrientationLockType orientations) = 0;
-
-  // Unlock the screen orientation.
-  virtual void UnlockOrientation() = 0;
-
-  // Inform about a screen orientation update. It is called to let the provider
-  // know if a lock has been resolved.
-  virtual void OnOrientationChange() = 0;
-
-  virtual ~ScreenOrientationProvider() {}
-
- protected:
-  friend class ScreenOrientationDispatcherHost;
-
-  static ScreenOrientationProvider* Create(
-      ScreenOrientationDispatcherHost* dispatcher_host,
-      WebContents* web_contents);
-
-  ScreenOrientationProvider() {}
-
-  DISALLOW_COPY_AND_ASSIGN(ScreenOrientationProvider);
-};
-
-#if !defined(OS_ANDROID)
-// static
-ScreenOrientationProvider* ScreenOrientationProvider::Create(
-    ScreenOrientationDispatcherHost* dispatcher_host,
-    WebContents* web_contents) {
-  return NULL;
-}
-#endif // !defined(OS_ANDROID)
-
-} // namespace content
-
-#endif // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_