Revert of Converted video frame and image callbacks to use new sync tokens.

content/common/gpu/client/gl_helper.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/common/gpu/client/gl_helper.h"
 
 #include <queue>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 936 matching lines @@
   gl_->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
   return texture;
 }
 
 void GLHelper::DeleteTexture(GLuint texture_id) {
   gl_->DeleteTextures(1, &texture_id);
 }
 
 uint32 GLHelper::InsertSyncPoint() { return gl_->InsertSyncPointCHROMIUM(); }
 
-void GLHelper::GenerateSyncToken(gpu::SyncToken* sync_token) {
-  const uint64_t fence_sync = gl_->InsertFenceSyncCHROMIUM();
-  gl_->ShallowFlushCHROMIUM();
-  gl_->GenSyncTokenCHROMIUM(fence_sync, sync_token->GetData());
-}
-
 void GLHelper::WaitSyncToken(const gpu::SyncToken& sync_token) {
   gl_->WaitSyncTokenCHROMIUM(sync_token.GetConstData());
 }
 
 gpu::MailboxHolder GLHelper::ProduceMailboxHolderFromTexture(
     GLuint texture_id) {
   gpu::Mailbox mailbox;
   gl_->GenMailboxCHROMIUM(mailbox.name);
   gl_->ProduceTextureDirectCHROMIUM(texture_id, GL_TEXTURE_2D, mailbox.name);
   return gpu::MailboxHolder(mailbox, gpu::SyncToken(InsertSyncPoint()),
@@ skipping 403 matching lines @@
   InitCopyTextToImpl();
   return copy_texture_to_impl_->CreateReadbackPipelineYUV(quality,
                                                           src_size,
                                                           src_subrect,
                                                           dst_size,
                                                           flip_vertically,
                                                           use_mrt);
 }
 
 }  // namespace content