base: Do not allow MessagePumpObservers to consume events.

chrome/browser/ui/views/notifications/balloon_collection_views.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/notifications/balloon_collection_impl.h"
 
 #include "chrome/browser/notifications/balloon.h"
 #include "chrome/browser/ui/views/notifications/balloon_view_views.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/event_utils.h"
@@ skipping 26 matching lines @@
 }
 
 bool BalloonCollectionImpl::Layout::NeedToMoveAboveRightSidePanels() const {
   return placement_ == VERTICALLY_FROM_BOTTOM_RIGHT;
 }
 
 void BalloonCollectionImpl::PositionBalloons(bool reposition) {
   PositionBalloonsInternal(reposition);
 }
 
-base::EventStatus BalloonCollectionImpl::WillProcessEvent(
-    const base::NativeEvent& event) {
-  return base::EVENT_CONTINUE;
-}
+void BalloonCollectionImpl::WillProcessEvent(const base::NativeEvent& event) {}
 
 void BalloonCollectionImpl::DidProcessEvent(const base::NativeEvent& event) {
 #if defined(OS_WIN)
   switch (event.message) {
     case WM_MOUSEMOVE:
     case WM_MOUSELEAVE:
     case WM_NCMOUSELEAVE:
       HandleMouseMoveEvent();
       break;
   }
@@ skipping 45 matching lines @@
     NOTREACHED();
 
   layout_.ComputeOffsetToMoveAbovePanels();
   PositionBalloons(true);
 }
 
 // static
 BalloonCollection* BalloonCollection::Create() {
   return new BalloonCollectionImpl();
 }