1 files changed, 5 insertions, 2 deletions
diff --git a/chrome/browser/session_service.h b/chrome/browser/session_service.h
index d1b6e36..3f7548f 100644
--- a/chrome/browser/session_service.h
+++ b/chrome/browser/session_service.h
@@ -24,11 +24,14 @@ class NavigationController;
 class NavigationEntry;
 class Profile;
 class TabContents;
-class Thread;
 class Timer;
 class SessionBackend;
 class SessionCommand;
 
+namespace base {
+class Thread;
+}
+
 // TabNavigation  ------------------------------------------------------------
 
 // TabNavigation corresponds to a NavigationEntry.
@@ -551,7 +554,7 @@ class SessionService : public CancelableRequestProvider,
 
   // Thread backend tasks are run on. This comes from the profile, and is
   // null during testing.
-  Thread* backend_thread_;
+  base::Thread* backend_thread_;
 
   // Are there any open open tabbed browsers?
   bool has_open_tabbed_browsers_;