Exempt default apps from external-extension alerts.

chrome/browser/extensions/default_apps.cc

 // Copyright (c) 2011 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/extensions/default_apps.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/default_apps_trial.h"
@@ skipping 96 matching lines @@
 Provider::Provider(Profile* profile,
                    VisitorInterface* service,
                    ExternalExtensionLoader* loader,
                    Extension::Location crx_location,
                    Extension::Location download_location,
                    int creation_flags)
     : ExternalExtensionProviderImpl(service, loader, crx_location,
                                     download_location, creation_flags),
       profile_(profile) {
   DCHECK(profile);
+  set_should_acknowledge(true);
 }
 
 void Provider::VisitRegisteredExtension() {
   if (!profile_ || !ShouldInstallInProfile(profile_)) {
     base::DictionaryValue* prefs = new base::DictionaryValue;
     SetPrefs(prefs);
     return;
   }
 
   ExternalExtensionProviderImpl::VisitRegisteredExtension();
 }
 
 }  // namespace default_apps