Fix uma_interface variable name in CdmAdapter.

media/cdm/ppapi/cdm_adapter.cc

 // Copyright 2013 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 "media/cdm/ppapi/cdm_adapter.h"
 
 #include "media/base/limits.h"
 #include "media/cdm/ppapi/cdm_file_io_impl.h"
 #include "media/cdm/ppapi/cdm_helpers.h"
 #include "media/cdm/ppapi/cdm_logging.h"
@@ skipping 1176 matching lines @@
   }
 }
 
 // The CDM owns the returned object and must call FileIO::Close() to release it.
 cdm::FileIO* CdmAdapter::CreateFileIO(cdm::FileIOClient* client) {
   return new CdmFileIOImpl(client, pp_instance());
 }
 
 #if defined(OS_CHROMEOS)
 void CdmAdapter::ReportOutputProtectionUMA(OutputProtectionStatus status) {
-  pp::UMAPrivate uma_interface_(this);
-  uma_interface_.HistogramEnumeration(
+  pp::UMAPrivate uma_interface(this);
+  uma_interface.HistogramEnumeration(
       "Media.EME.OutputProtection", status, OUTPUT_PROTECTION_MAX);
 }
 
 void CdmAdapter::ReportOutputProtectionQuery() {
   if (uma_for_output_protection_query_reported_)
     return;
 
   ReportOutputProtectionUMA(OUTPUT_PROTECTION_QUERIED);
   uma_for_output_protection_query_reported_ = true;
 }
@@ skipping 149 matching lines @@
 }  // namespace media
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new media::CdmAdapterModule();
 }
 
 }  // namespace pp