Return Frame&, not Frame* from RenderView::frame()

Source/core/page/EventHandler.cpp

Index: Source/core/page/EventHandler.cpp
diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp
index e03826eec5bf1a0a4d5d01af886bbaa55c9bd788..d29c43cb81983b1169dc70a89bb27f724178909b 100644
--- a/Source/core/page/EventHandler.cpp
+++ b/Source/core/page/EventHandler.cpp
@@ -1051,7 +1051,7 @@ Frame* EventHandler::subframeForTargetNode(Node* node)
     if (!widget || !widget->isFrameView())
         return 0;
 
-    return toFrameView(widget)->frame();
+    return &toFrameView(widget)->frame();
 }
 
 static bool isSubmitImage(Node* node)
@@ -2463,7 +2463,7 @@ bool EventHandler::passGestureEventToWidget(const PlatformGestureEvent& gestureE
     if (!widget->isFrameView())
         return false;
 
-    return toFrameView(widget)->frame()->eventHandler()->handleGestureEvent(gestureEvent);
+    return toFrameView(widget)->frame().eventHandler()->handleGestureEvent(gestureEvent);
 }
 
 bool EventHandler::passGestureEventToWidgetIfPossible(const PlatformGestureEvent& gestureEvent, RenderObject* renderer)
@@ -3820,7 +3820,7 @@ bool EventHandler::passWheelEventToWidget(const PlatformWheelEvent& wheelEvent,
     if (!widget->isFrameView())
         return false;
 
-    return toFrameView(widget)->frame()->eventHandler()->handleWheelEvent(wheelEvent);
+    return toFrameView(widget)->frame().eventHandler()->handleWheelEvent(wheelEvent);
 }
 
 bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event)