Extension Settings API: move the API functions into an object SettingsNamepace,

chrome/browser/extensions/settings/syncable_settings_storage.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/settings/syncable_settings_storage.h"
 
 #include "base/memory/scoped_ptr.h"
+#include "chrome/browser/extensions/settings/settings_namespace.h"
 #include "chrome/browser/extensions/settings/settings_sync_util.h"
 #include "chrome/browser/sync/api/sync_data.h"
 #include "chrome/browser/sync/protocol/extension_setting_specifics.pb.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace extensions {
 
 using content::BrowserThread;
 
 SyncableSettingsStorage::SyncableSettingsStorage(
@@ skipping 301 matching lines @@
     }
 
     if (error.IsSet()) {
       errors.push_back(error);
     }
   }
 
   observers_->Notify(
       &SettingsObserver::OnSettingsChanged,
       extension_id_,
+      settings_namespace::SYNC,
       SettingChange::GetEventJson(changes));
 
   // TODO(kalman): Something sensible with multiple errors.
   return errors.empty() ? SyncError() : errors[0];
 }
 
 void SyncableSettingsStorage::SendChangesToSync(
     const SettingChangeList& changes) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   DCHECK(sync_processor_);
@@ skipping 99 matching lines @@
         FROM_HERE,
         std::string("Error pushing sync remove to local settings: ") +
             result.error(),
         sync_type_);
   }
   changes->push_back(SettingChange(key, old_value, NULL));
   return SyncError();
 }
 
 }  // namespace extensions