[ScreenOrientation] Hide ScreenOrientationProvider inside WebContentsImpl.

content/public/browser/web_contents.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_PUBLIC_BROWSER_WEB_CONTENTS_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <set>
 
 #include "base/callback_forward.h"
 #include "base/files/file_path.h"
 #include "base/process/kill.h"
 #include "base/strings/string16.h"
 #include "base/supports_user_data.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/invalidate_type.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/page_navigator.h"
 #include "content/public/browser/save_page_type.h"
+#include "content/public/browser/screen_orientation_delegate.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/common/stop_find_action.h"
 #include "ipc/ipc_sender.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 
 #if defined(OS_ANDROID)
@@ skipping 150 matching lines @@
   // Returns the WebContents that owns the RenderViewHost, or nullptr if the
   // render view host's delegate isn't a WebContents.
   CONTENT_EXPORT static WebContents* FromRenderViewHost(RenderViewHost* rvh);
 
   CONTENT_EXPORT static WebContents* FromRenderFrameHost(RenderFrameHost* rfh);
 
   // Returns the WebContents associated with the |frame_tree_node_id|.
   CONTENT_EXPORT static WebContents* FromFrameTreeNodeId(
       int frame_tree_node_id);
 
+  // Sets delegate for platform specific screen orientation functionality.
+  CONTENT_EXPORT static void SetScreenOrientationDelegate(
+      ScreenOrientationDelegate* delegate);
+
   ~WebContents() override {}
 
   // Intrinsic tab state -------------------------------------------------------
 
   // Gets/Sets the delegate.
   virtual WebContentsDelegate* GetDelegate() = 0;
   virtual void SetDelegate(WebContentsDelegate* delegate) = 0;
 
   // Gets the controller for this WebContents.
   virtual NavigationController& GetController() = 0;
@@ skipping 578 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class WebContentsImpl;
   WebContents() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_