aura: A few changes to have aura_demo compile and run on linux.

aura/event.h

Index: aura/event.h
diff --git a/aura/event.h b/aura/event.h
index 27a9843ea2748907629347a3534b3ad6485b79b5..3612563cc8c5b8ad4831c45c22bb7e4b9603ebb3 100644
--- a/aura/event.h
+++ b/aura/event.h
@@ -12,8 +12,6 @@
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/point.h"
 
-namespace aura {
-
 #if defined(OS_WIN)
 typedef MSG NativeEvent;

[Ben Goodger (Google), 2011/09/04 16:35:45]

I think these should stay within the aura namespace. We also define NativeEvent
in views.

[sadrul, 2011/09/04 18:14:13]

Ah yes. Undid the change (had to move the typedef for XEvent out of the
namespace)

 #elif defined(USE_X11)
@@ -21,6 +19,8 @@ typedef union _XEvent XEvent;
 typedef XEvent* NativeEvent;
 #endif
 
+namespace aura {
+
 class Window;
 
 class Event {