Android: Always update SurfaceTexture when used for draw

content/common/gpu/stream_texture_android.h

 // Copyright (c) 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_COMMON_GPU_STREAM_TEXTURE_ANDROID_H_
 #define CONTENT_COMMON_GPU_STREAM_TEXTURE_ANDROID_H_
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
@@ skipping 41 matching lines @@
   void OnSetSize(const gfx::Size& size) { size_ = size; }
 
   scoped_refptr<gfx::SurfaceTexture> surface_texture_;
 
   // Current transform matrix of the surface texture.
   float current_matrix_[16];
 
   // Current size of the surface texture.
   gfx::Size size_;
 
-  // Whether the surface texture has been updated.
-  bool has_updated_;
+  // Whether we ever bound a valid frame.
+  bool has_valid_frame_;
+
+  // Whether a new frame is available that we should update to.
+  bool has_pending_frame_;
 
   GpuCommandBufferStub* owner_stub_;
   int32 route_id_;
   bool has_listener_;
 
   base::WeakPtrFactory<StreamTexture> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(StreamTexture);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_STREAM_TEXTURE_ANDROID_H_