Exposes OrientationChangeEvent.

content/public/browser/render_view_host.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_RENDER_VIEW_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_
 #pragma once
 
 #include "base/values.h"
 #include "content/common/content_export.h"
@@ skipping 227 matching lines @@
 
   // Changes the zoom level for the current main frame.
   virtual void Zoom(PageZoom zoom) = 0;
 
   // Send the renderer process the current preferences supplied by the
   // RenderViewHostDelegate.
   virtual void SyncRendererPrefs() = 0;
 
   virtual void ToggleSpeechInput() = 0;
 
+  // User rotated the screen. Calls the "onorientationchange" Javascript hook.

[jam, 2012/05/14 06:09:54]

where will the code that call this reside, i.e. in content/ or chrome/ ? if in
content/, this doesn't need to be exposed on the public API

[bulach, 2012/05/14 11:59:30]

really good point! until a couple of days ago :) this was called by an object
that just got renamed / moved to ContentView donwstream.

I'll fix that, but just to make it right: I see a few places that static_cast a
RenderViewHost down to a RenderViewHostImpl, and some other places that use the
RVH to directly send the IPC message. which one is the preferred way?

(our ContentsView, which is essentially a conduit to/from the java side, has a
WebContents, which gives it access to a RVH)

+  virtual void SendOrientationChangeEvent(int orientation) = 0;
+
   // Passes a list of Webkit preferences to the renderer.
   virtual void UpdateWebkitPreferences(const WebPreferences& prefs) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_