Add glGetActiveUniformBlockiv to GPU command buffer.

gpu/command_buffer/client/program_info_manager.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 "gpu/command_buffer/client/program_info_manager.h"
 
 namespace {
 
 template<typename T> static T LocalGetAs(
     const std::vector<int8>& data, uint32 offset, size_t size) {
@@ skipping 617 matching lines @@
             *params = static_cast<GLint>(
                 uniform_block->referenced_by_fragment_shader);
             break;
           default:
             NOTREACHED();
         }
         return true;
       }
     }
   }
-  return false;
-  // TODO(zmo): return gl->GetActiveUniformBlockivHelper(
-  //                program, index, pname, params);
+  return gl->GetActiveUniformBlockivHelper(program, index, pname, params);
 }
 
 }  // namespace gles2
 }  // namespace gpu