RemoveSurfaceTextureAndProxy is not used.

content/renderer/media/android/webmediaplayer_android.h

 // Copyright 2013 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_MEDIA_ANDROID_WEBMEDIAPLAYER_ANDROID_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_WEBMEDIAPLAYER_ANDROID_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 227 matching lines @@
   void SetNeedsEstablishPeer(bool needs_establish_peer);
 
  private:
   void InitializePlayer(const GURL& url,
                         const GURL& first_party_for_cookies,
                         bool allowed_stored_credentials);
   void Pause(bool is_media_related_action);
   void DrawRemotePlaybackText(const std::string& remote_playback_message);
   void ReallocateVideoFrame();
   void SetCurrentFrameInternal(scoped_refptr<media::VideoFrame>& frame);
-  void RemoveSurfaceTextureAndProxy();
   void DidLoadMediaInfo(MediaInfoLoader::Status status,
                         const GURL& redirected_url,
                         const GURL& first_party_for_cookies,
                         bool allow_stored_credentials);
   bool IsLocalResource();
 
   // Called whenever we create a new StreamTextureProxy and had a VFP::Client,
   // or when we get a new VFP::Client and had a StreamTextureProxy.
   // Sets |stream_texture_proxy_|'s OnFrameAvailable() to call |client|'s
   // DidReceiveFrame().
@@ skipping 168 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<WebMediaPlayerAndroid> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_WEBMEDIAPLAYER_ANDROID_H_