Extract and dispatch device uuid in media device attached notification message.

chrome/browser/chromeos/disks/mock_disk_mount_manager.h

Index: chrome/browser/chromeos/disks/mock_disk_mount_manager.h
diff --git a/chrome/browser/chromeos/disks/mock_disk_mount_manager.h b/chrome/browser/chromeos/disks/mock_disk_mount_manager.h
index 0a3d622eb1398e49219fdc0a6edcb6f6c20ecf94..f22e72b03bd9658f99114d5505213fca1bec2ae2 100644
--- a/chrome/browser/chromeos/disks/mock_disk_mount_manager.h
+++ b/chrome/browser/chromeos/disks/mock_disk_mount_manager.h
@@ -48,6 +48,17 @@ class MockDiskMountManager : public DiskMountManager {
   // Sets up default results for mock methods.
   void SetupDefaultReplies();
 
+  // Creates a fake disk entry for the mounted device. This function is
+  // primarily for MediaDeviceNotificationsTest.

[Lei Zhang, 2012/07/30 23:00:49]

You may want to mention this is needed so MediaDeviceNotifications can look up
the disk's device id.

[kmadhusu, 2012/07/30 23:08:29]

I thought "This function is primarily for MediaDeviceNotificationsTest" says it
all. I don't want to specify the implementation details in the comments.

+  void CreateDiskEntryForMountDevice(
+      const DiskMountManager::MountPointInfo& mount_info,
+      const std::string& device_id);
+
+  // Removes the fake disk entry associated with the mounted device. This
+  // function is primarily for MediaDeviceNotificationsTest.
+  void RemoveDiskEntryForMountDevice(
+      const DiskMountManager::MountPointInfo& mount_info);
+
  private:
   // Is used to implement AddObserver.
   void AddObserverInternal(DiskMountManager::Observer* observer);