Add Aura support to views:

views/native_types.h

Index: views/native_types.h
===================================================================
--- views/native_types.h	(revision 98084)
+++ views/native_types.h	(working copy)
@@ -15,6 +15,12 @@
 typedef union _XEvent XEvent;
 #endif
 
+#if defined(USE_AURA)
+namespace aura {
+class Event;
+}
+#endif
+
 namespace views {
 
 // A note about NativeEvent and NativeEvent2.
@@ -29,12 +35,14 @@
 // views, we can remove NativeEvent2 and typedef XEvent* to NativeEvent. The
 // world will then be beautiful(ish).
 
-#if defined(OS_WIN)
+#if defined(USE_AURA)
+typedef aura::Event* NativeEvent;
+#elif defined(OS_WIN)
 typedef MSG NativeEvent;
-#endif
-#if defined(OS_LINUX)
+#elif defined(OS_LINUX)
 typedef GdkEvent* NativeEvent;
 #endif
+
 #if defined(USE_X11)
 typedef XEvent* NativeEvent2;
 #else