Consolidate message observer API for win and aura (and touch).

chrome/browser/notifications/balloon_collection_win.cc

Index: chrome/browser/notifications/balloon_collection_win.cc
diff --git a/chrome/browser/notifications/balloon_collection_win.cc b/chrome/browser/notifications/balloon_collection_win.cc
index 821b5f4b31c9eca2f8b67d70a71b780ccae1ebce..40ccfd5ca38403b2fdfe44abc49bcb8585f1971b 100644
--- a/chrome/browser/notifications/balloon_collection_win.cc
+++ b/chrome/browser/notifications/balloon_collection_win.cc
@@ -33,7 +33,11 @@ void BalloonCollectionImpl::PositionBalloons(bool reposition) {
   PositionBalloonsInternal(reposition);
 }
 
-void BalloonCollectionImpl::DidProcessMessage(const MSG& msg) {
+base::EventStatus BalloonCollectionImpl::WillProcessEvent(const MSG& event) {

[msw, 2011/09/27 01:16:46]

naming consistency between event here and msg below.

optional: type consistency with declaration in this platform-specific instance.

[oshima, 2011/09/27 02:12:12]

Done.

+  return base::EVENT_CONTINUE;
+}
+
+void BalloonCollectionImpl::DidProcessEvent(const MSG& msg) {
   switch (msg.message) {
     case WM_MOUSEMOVE:
     case WM_MOUSELEAVE: