Consistently use notifications from component updater w/ on-demand PNaCl.

chrome/browser/component_updater/component_updater_service.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 "chrome/browser/component_updater/component_updater_service.h"
 
 #include <algorithm>
 #include <set>
 #include <vector>
 
@@ skipping 966 matching lines @@
       break;
     default:
       event = Configurator::kUnpackError;
       break;
   }
 
   config_->OnEvent(event, CrxIdtoUMAId(component_id));
   ScheduleNextRun(false);
 }
 
+bool ComponentUpdateService::IsUpdateNotificationForComponent(
+    const content::NotificationSource& src,
+    const CrxComponent& component) {
+  std::string id =
+      HexStringToID(StringToLowerASCII(base::HexEncode(&component.pk_hash[0],
+                                       component.pk_hash.size()/2)));
+  return content::Source<std::string>(src)->compare(id) == 0;
+}
+
 // The component update factory. Using the component updater as a singleton
 // is the job of the browser process.
 ComponentUpdateService* ComponentUpdateServiceFactory(
     ComponentUpdateService::Configurator* config) {
   DCHECK(config);
   return new CrxUpdateService(config);
 }