Monitor the intersection of video and viewport.

media/remoting/remoting_controller.h

 // Copyright 2016 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 MEDIA_REMOTING_REMOTING_CONTROLLER_H_
 #define MEDIA_REMOTING_REMOTING_CONTROLLER_H_
 
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "media/base/media_observer.h"
@@ skipping 40 matching lines @@
   void OnMessageFromSink(const std::vector<uint8_t>& message) override;
   void OnStopped(mojom::RemotingStopReason reason) override;
 
   // MediaObserver implementations.
   // This is called when the video element or its ancestor enters full screen.
   // We currently use this as an indicator for immersive playback. May add other
   // criteria (e.g. the actual display width/height of the video element) in
   // future.
   void OnEnteredFullscreen() override;
   void OnExitedFullscreen() override;
+  void OnVideoViewportRatioChanged(double ratio) override;
   void OnSetCdm(CdmContext* cdm_context) override;
   void OnMetadataChanged(const PipelineMetadata& metadata) override;
 
   using SwitchRendererCallback = base::Callback<void()>;
   void SetSwitchRendererCallback(const SwitchRendererCallback& cb);
 
   // Tells which renderer should be used.
   bool is_remoting() const {
     DCHECK(task_runner_->BelongsToCurrentThread());
     return is_remoting_;
@@ skipping 51 matching lines @@
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   base::WeakPtrFactory<RemotingController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RemotingController);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_REMOTING_REMOTING_CONTROLLER_H_