Extend the capability of SystemMonitor to support watching storage free space change

chrome/browser/system_monitor/media_device_notifications_chromeos.cc

Index: chrome/browser/system_monitor/media_device_notifications_chromeos.cc
diff --git a/chrome/browser/system_monitor/media_device_notifications_chromeos.cc b/chrome/browser/system_monitor/media_device_notifications_chromeos.cc
index 3f203fcbb8ca273fca0e460ed47e5b03a5b8ed24..3708439f162b31c41568af3bfac6abcbd815dc26 100644
--- a/chrome/browser/system_monitor/media_device_notifications_chromeos.cc
+++ b/chrome/browser/system_monitor/media_device_notifications_chromeos.cc
@@ -160,4 +160,16 @@ void MediaDeviceNotifications::AddMountedPathOnUIThread(
       mount_info.mount_path);
 }
 
+bool MediaDeviceNotifications::StartWatchingStorage(
+    const FilePath::StringType& path) {
+  // TODO(hongbo): Add the implementation for chromeos.

[vandebo (ex-Chrome), 2012/09/10 21:52:49]

Nothing will break if this isn't here, so don't add these until you have the
implementation to add.

+  return false;
+}
+
+bool MediaDeviceNotifications::StopWatchingStorage(
+    const FilePath::StringType& path) {
+  // TODO(hongbo): Add the implementation for chromeos.
+  return false;
+}
+
 }  // namespace chrome