Poll for Display rotation on Android 4.0 and 4.1 when needed.

content/renderer/renderer_webkitplatformsupport_impl.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_RENDERER_RENDERER_WEBKITPLATFORMSUPPORT_IMPL_H_
 #define CONTENT_RENDERER_RENDERER_WEBKITPLATFORMSUPPORT_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/child/blink_platform_impl.h"
@@ skipping 137 matching lines @@
       blink::WebStorageQuotaCallbacks);
   virtual void vibrate(unsigned int milliseconds);
   virtual void cancelVibration();
   virtual void setBatteryStatusListener(
       blink::WebBatteryStatusListener* listener);
 
   void set_gamepad_provider(RendererGamepadProvider* provider) {
     gamepad_provider_ = provider;
   }
 
+  virtual void startScreenOrientationListening();

[jam, 2014/07/16 21:29:14]

nit: all the overridden methods are beside each other with no blank lines, so
move this up to 153 (assuming it's at the end of the interface, otherwise put it
in the right order). ditto for the cc file

[mlamouri (slow - plz ping), 2014/07/17 09:44:16]

Done.

+  virtual void stopScreenOrientationListening();
+
   // Disables the WebSandboxSupport implementation for testing.
   // Tests that do not set up a full sandbox environment should call
   // SetSandboxEnabledForTesting(false) _before_ creating any instances
   // of this class, to ensure that we don't attempt to use sandbox-related
   // file descriptors or other resources.
   //
   // Returns the previous |enable| value.
   static bool SetSandboxEnabledForTesting(bool enable);
 
   //  Set a double to return when setDeviceLightListener is invoked.
@@ skipping 62 matching lines @@
   scoped_ptr<BatteryStatusDispatcher> battery_status_dispatcher_;
 
   RendererGamepadProvider* gamepad_provider_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererWebKitPlatformSupportImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDERER_WEBKITPLATFORMSUPPORT_IMPL_H_