Fix WebGL getParameter bug in command buffer.

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // Copyright (c) 2009 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/service/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 2441 matching lines @@
           texture_manager()->GetClientId(
               unit.bound_texture_cube_map->service_id(), &client_id);
           *params = client_id;
         } else {
           *params = 0;
         }
       }
       return true;
     default:
       *num_written = util_.GLGetNumValuesReturned(pname);
-      if (params) {
-        glGetIntegerv(pname, params);
-      }
-      return true;
+      return false;
   }
 }
 
 bool GLES2DecoderImpl::GetNumValuesReturnedForGLGet(
     GLenum pname, GLsizei* num_values) {
   return GetHelper(pname, NULL, num_values);
 }
 
 void GLES2DecoderImpl::DoGetBooleanv(GLenum pname, GLboolean* params) {
   DCHECK(params);
@@ skipping 2520 matching lines @@
   return error::kNoError;
 }
 
 // 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/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu