Make stream_id internal to StreamTextureHost.

content/renderer/media/android/stream_texture_wrapper_impl.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 CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_WRAPPER_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_WRAPPER_IMPL_H_
 
 #include <memory>
 
 #include "content/common/content_export.h"
@@ skipping 83 matching lines @@
 
   void SetCurrentFrameInternal(
       const scoped_refptr<media::VideoFrame>& video_frame);
 
   // Client GL texture ID allocated to the StreamTexture.
   unsigned texture_id_;
 
   // GL texture mailbox for |texture_id_|.
   gpu::Mailbox texture_mailbox_;
 
-  // Stream texture ID.
-  unsigned stream_id_;
-
   // Object for calling back the compositor thread to repaint the video when a
   // frame is available. It should be bound to |compositor_task_runner_|.
   ScopedStreamTextureProxy stream_texture_proxy_;
 
   // Size of the video frames.
   gfx::Size natural_size_;
 
   scoped_refptr<StreamTextureFactory> factory_;
 
   base::Lock current_frame_lock_;
   scoped_refptr<media::VideoFrame> current_frame_;
 
   scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
 
   base::WeakPtrFactory<StreamTextureWrapperImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(StreamTextureWrapperImpl);
 };
 
 }  // namespace media
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_WRAPPER_IMPL_H_