aura: Fix unit_tests on linux

base/message_pump_observer.h

Index: base/message_pump_observer.h
diff --git a/base/message_pump_observer.h b/base/message_pump_observer.h
index efcdebfe1a2b3ecebcfbedb2379f96cec47c5ddd..42f201f346e4ea1c115ba6e5fbb25056c01244b7 100644
--- a/base/message_pump_observer.h
+++ b/base/message_pump_observer.h
@@ -38,6 +38,9 @@ class BASE_EXPORT MessagePumpObserver {
   // will not be called if WillProcessEvent returns EVENT_HANDLED.
   virtual void DidProcessEvent(const NativeEvent& event) = 0;
 
+  // This method is called just before the message pump is destroyed.
+  virtual void OnMessagePumpDestroying() {}

[darin (slow to review), 2011/11/30 06:30:31]

nit: I think a better name would be WillDestroyMessagePump.  Notice how that
makes the comment unnecessary / redundant?

I also recommend listing destruction notifications first.

+
  protected:
   virtual ~MessagePumpObserver() {}
 };