Avoid attaching SurfaceTexture to GL context repeatedly

content/browser/renderer_host/surface_texture_transport_client_android.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/renderer_host/surface_texture_transport_client_android.h"
 
 #include <android/native_window_jni.h>
 
 #include "base/bind.h"
 #include "cc/video_layer.h"
@@ skipping 53 matching lines @@
   video_layer_->setBounds(size);
   video_frame_.reset();
 }
 
 WebKit::WebVideoFrame* SurfaceTextureTransportClient::getCurrentFrame() {
   if (!texture_id_) {
     WebKit::WebGraphicsContext3D* context =
         ImageTransportFactoryAndroid::GetInstance()->GetContext3D();
     context->makeContextCurrent();
     texture_id_ = context->createTexture();
+    surface_texture_->AttachToGLContext(texture_id_);
   }
   if (!video_frame_.get()) {
-    surface_texture_->AttachToGLContext(texture_id_);
     const gfx::Size size = video_layer_->bounds();
     video_frame_.reset(
         new webkit_media::WebVideoFrameImpl(
             media::VideoFrame::WrapNativeTexture(
                 texture_id_, kGLTextureExternalOES,
                 size,
                 gfx::Rect(gfx::Point(), size),
                 size,
                 base::TimeDelta(),
                 media::VideoFrame::ReadPixelsCB(),
                 base::Closure())));
   }
   surface_texture_->UpdateTexImage();
 
   return video_frame_.get();
 }
 
 void SurfaceTextureTransportClient::putCurrentFrame(
     WebKit::WebVideoFrame* frame) {
 }
 
 void SurfaceTextureTransportClient::OnSurfaceTextureFrameAvailable() {
   video_layer_->setNeedsDisplay();
 }
 
 } // namespace content