Bug 77992 part 1.0 - Add timeStamp to WidgetEvent; r=smaug

This patch adds a timeStamp member to WidgetEvent alongside the existing 'time'
member. In the future we would like to remove 'time' and just keep timeStamp but
that depends on it being web-compatible. For now we introduce both members
side-by-side. Later we will add a pref to determine which one to return. If no
compatibility issues arise we will remove 'time' altogether.

widget/android/AndroidJavaWrappers.cpp

@@ -9,6 +9,7 @@
 #include "nsIDOMKeyEvent.h"
 #include "nsIWidget.h"
 #include "mozilla/BasicEvents.h"
+#include "mozilla/TimeStamp.h"
 #include "mozilla/TouchEvents.h"
 
 using namespace mozilla;
@@ -754,7 +755,7 @@ AndroidGeckoEvent::MakeMultiTouchInput(nsIWidget* widget)
         }
     }
 
-    MultiTouchInput event(type, Time(), 0);
+    MultiTouchInput event(type, Time(), TimeStamp(), 0);
     event.modifiers = DOMModifiers();
 
     if (type < 0) {