Mojo-ify implementation of screen orientation locking/unlocking.

content/browser/frame_host/render_frame_host_delegate.h

 // 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.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 23 matching lines @@
 namespace device {
 class GeolocationServiceContext;
 class WakeLockServiceContext;
 }
 
 namespace content {
 class FrameTreeNode;
 class InterstitialPage;
 class PageState;
 class RenderFrameHost;
+class ScreenOrientationImpl;
 class WebContents;
 struct AXEventNotificationDetails;
 struct AXLocationChangeNotificationDetails;
 struct ContextMenuParams;
 struct FileChooserParams;
 struct TransitionLayerData;
 
 // An interface implemented by an object interested in knowing about the state
 // of the RenderFrameHost.
 class CONTENT_EXPORT RenderFrameHostDelegate {
@@ skipping 108 matching lines @@
   virtual RenderFrameHost* GetGuestByInstanceID(
       RenderFrameHost* render_frame_host,
       int browser_plugin_instance_id);
 
   // Gets the GeolocationServiceContext associated with this delegate.
   virtual device::GeolocationServiceContext* GetGeolocationServiceContext();
 
   // Gets the WakeLockServiceContext associated with this delegate.
   virtual device::WakeLockServiceContext* GetWakeLockServiceContext();
 
+  // Gets the ScreenOrientation interface associated with this delegate.
+  virtual ScreenOrientationImpl* GetScreenOrientation();

[blundell, 2016/10/21 18:16:31]

nit: I would just expose the ScreenOrientationProvider directly.

[lunalu1, 2016/10/24 16:57:36]

Done.

+
   // Notification that the frame wants to go into fullscreen mode.
   // |origin| represents the origin of the frame that requests fullscreen.
   virtual void EnterFullscreenMode(const GURL& origin) {}
 
   // Notification that the frame wants to go out of fullscreen mode.
   // |will_cause_resize| indicates whether the fullscreen change causes a
   // view resize. e.g. This will be false when going from tab fullscreen to
   // browser fullscreen.
   virtual void ExitFullscreenMode(bool will_cause_resize) {}
 
@@ skipping 26 matching lines @@
   virtual std::unique_ptr<WebUIImpl> CreateWebUIForRenderFrameHost(
       const GURL& url);
 
  protected:
   virtual ~RenderFrameHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_