media: Remove redundant DCHECK to check texture binding.

content/renderer/media/webmediaplayer_impl.cc

 // 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.
 
 #include "content/renderer/media/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 #include <vector>
@@ skipping 598 matching lines @@
 
   if (!video_frame)
     return false;
   if (video_frame->format() != media::VideoFrame::NATIVE_TEXTURE)
     return false;
 
   const gpu::MailboxHolder* mailbox_holder = video_frame->mailbox_holder();
   if (mailbox_holder->texture_target != GL_TEXTURE_2D)
     return false;
 
-  // Since this method changes which texture is bound to the TEXTURE_2D target,
-  // ideally it would restore the currently-bound texture before returning.
-  // The cost of getIntegerv is sufficiently high, however, that we want to
-  // avoid it in user builds. As a result assume (below) that |texture| is
-  // bound when this method is called, and only verify this fact when
-  // DCHECK_IS_ON.
-#if DCHECK_IS_ON
-  GLint bound_texture = 0;
-  web_graphics_context->getIntegerv(GL_TEXTURE_BINDING_2D, &bound_texture);
-  DCHECK_EQ(static_cast<GLuint>(bound_texture), texture);
-#endif
-
   web_graphics_context->waitSyncPoint(mailbox_holder->sync_point);
   uint32 source_texture = web_graphics_context->createAndConsumeTextureCHROMIUM(
       GL_TEXTURE_2D, mailbox_holder->mailbox.name);
 
   // The video is stored in a unmultiplied format, so premultiply
   // if necessary.
   web_graphics_context->pixelStorei(GL_UNPACK_PREMULTIPLY_ALPHA_CHROMIUM,
                                     premultiply_alpha);
   // Application itself needs to take care of setting the right flip_y
   // value down to get the expected result.
@@ skipping 696 matching lines @@
   compositor_task_runner_->PostTask(FROM_HERE,
                                     base::Bind(&GetCurrentFrameAndSignal,
                                                base::Unretained(compositor_),
                                                &video_frame,
                                                &event));
   event.Wait();
   return video_frame;
 }
 
 }  // namespace content