Chromium plumbing for Screen Orientation API orientationchange events.

content/renderer/screen_orientation/screen_orientation_dispatcher.h

+// Copyright 2014 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_SCREEN_ORIENTATION_DISPATCHER_H_
+#define CONTENT_RENDERER_SCREEN_ORIENTATION_DISPATCHER_H_
+
+#include "base/macros.h"
+#include "content/public/renderer/render_process_observer.h"
+
+namespace blink {
+class WebScreenOrientationListener;
+}
+
+namespace content {
+
+class RenderThread;
+
+// ScreenOrientationDispatcher listens to message from the browser process and
+// dispatch the orientation change ones to the WebScreenOrientationListener.
+class ScreenOrientationDispatcher : public RenderProcessObserver {
+ public:
+  ScreenOrientationDispatcher(RenderThread*);

[jochen (gone - plz use gerrit), 2014/02/20 16:11:04]

explicit.

also, needs virtual dtor

[mlamouri (slow - plz ping), 2014/02/20 16:32:47]

Done.

+
+  // RenderProcessObserver
+  virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
+
+  void setListener(blink::WebScreenOrientationListener*);
+
+ private:
+  void OnOrientationChange(int orientation);
+
+  blink::WebScreenOrientationListener* listener_;
+};

[jochen (gone - plz use gerrit), 2014/02/20 16:11:04]

disallow copy/assign

[mlamouri (slow - plz ping), 2014/02/20 16:32:47]

Done.

+
+}  // namespace content
+
+#endif // CONTENT_RENDERER_SCREEN_ORIENTATION_DISPATCHER_H_