[For trybots test] [ScreenOrientation] Hide ScreenOrientationProvider inside WebContentsImpl.

content/browser/frame_host/render_frame_host_delegate.h

Index: content/browser/frame_host/render_frame_host_delegate.h
diff --git a/content/browser/frame_host/render_frame_host_delegate.h b/content/browser/frame_host/render_frame_host_delegate.h
index 77a62aac7bae4ac9e79fcfaa7e1c1e4136335836..33f7944580ae0b0c28abe95a2a7704dfe62ba856 100644
--- a/content/browser/frame_host/render_frame_host_delegate.h
+++ b/content/browser/frame_host/render_frame_host_delegate.h
@@ -47,7 +47,6 @@ class InterstitialPage;
 class PageState;
 class RenderFrameHost;
 class RenderFrameHostImpl;
-class ScreenOrientationProvider;
 class SessionStorageNamespace;
 class WebContents;
 struct AXEventNotificationDetails;
@@ -187,9 +186,6 @@ class CONTENT_EXPORT RenderFrameHostDelegate {
   // Gets the WakeLockServiceContext associated with this delegate.
   virtual device::WakeLockServiceContext* GetWakeLockServiceContext();
 
-  // Gets the ScreenOrientationProvider associated with this delegate.
-  virtual ScreenOrientationProvider* GetScreenOrientationProvider();
-
   // 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) {}