Add subscribeUniform extension pipeline

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/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
@@ skipping 955 matching lines @@
   GPU_CLIENT_SINGLE_THREAD_CHECK();
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glBindUniformLocationCHROMIUM("
       << program << ", " << location << ", " << name << ")");
   SetBucketAsString(kResultBucketId, name);
   helper_->BindUniformLocationCHROMIUMBucket(
       program, location, kResultBucketId);
   helper_->SetBucketSize(kResultBucketId, 0);
   CheckGLError();
 }
 
+void GLES2Implementation::PopulateSubscribedUniformsCHROMIUM() {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] "
+                     << "glPopulateSubscribedUniformsCHROMIUM()");
+  helper_->PopulateSubscribedUniformsCHROMIUM();
+  CheckGLError();
+}
+
 void GLES2Implementation::GetVertexAttribPointerv(
     GLuint index, GLenum pname, void** ptr) {
   GPU_CLIENT_SINGLE_THREAD_CHECK();
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glGetVertexAttribPointer("
       << index << ", " << GLES2Util::GetStringVertexPointer(pname) << ", "
       << static_cast<void*>(ptr) << ")");
   GPU_CLIENT_LOG_CODE_BLOCK(int32 num_results = 1);
   if (!vertex_array_object_manager_->GetAttribPointer(index, pname, ptr)) {
     TRACE_EVENT0("gpu", "GLES2::GetVertexAttribPointerv");
     typedef cmds::GetVertexAttribPointerv::Result Result;
@@ skipping 3096 matching lines @@
   return true;
 }
 
 // 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