Removing GL context rate limiting feature and related wrappers

gpu/command_buffer/client/gles2_implementation.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.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
@@ skipping 4635 matching lines @@
   const size_t kNumChecks = sizeof(checks)/sizeof(checks[0]);
   for (size_t ii = 0; ii < kNumChecks; ++ii) {
     const ExtensionCheck& check = checks[ii];
     if (*check.status == kUnavailableExtensionStatus &&
         !strcmp(extension, check.extension)) {
       *check.status = kUnknownExtensionStatus;
     }
   }
 }
 
-void GLES2Implementation::RateLimitOffscreenContextCHROMIUM() {
-  GPU_CLIENT_SINGLE_THREAD_CHECK();
-  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glRateLimitOffscreenCHROMIUM()");
-  // Wait if this would add too many rate limit tokens.
-  if (rate_limit_tokens_.size() == kMaxSwapBuffers) {
-    helper_->WaitForToken(rate_limit_tokens_.front());
-    rate_limit_tokens_.pop();
-  }
-  rate_limit_tokens_.push(helper_->InsertToken());
-}
-
 void GLES2Implementation::GetProgramInfoCHROMIUMHelper(
     GLuint program, std::vector<int8>* result) {
   DCHECK(result);
   // Clear the bucket so if the command fails nothing will be in it.
   helper_->SetBucketSize(kResultBucketId, 0);
   helper_->GetProgramInfoCHROMIUM(program, kResultBucketId);
   GetBucketContents(kResultBucketId, result);
 }
 
 void GLES2Implementation::GetProgramInfoCHROMIUM(
@@ skipping 1210 matching lines @@
   CheckGLError();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/client/gles2_implementation_impl_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu