Revert 86724 - Modifying the BackgroundModeManager to handle multiple profiles.

chrome/test/testing_profile.cc

Index: chrome/test/testing_profile.cc
===================================================================
--- chrome/test/testing_profile.cc	(revision 86725)
+++ chrome/test/testing_profile.cc	(working copy)
@@ -677,6 +677,10 @@
   return ntp_resource_cache_.get();
 }
 
+StatusTray* TestingProfile::GetStatusTray() {
+  return NULL;
+}
+
 FilePath TestingProfile::last_selected_directory() {
   return last_selected_directory_;
 }