aura: Fix propagating wheel events.

BUG=144785

Review URL: https://chromiumcodereview.appspot.com/10868096

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@153500 0039d316-1c4b-4281-b951-d872f2087c98

ui/base/event.cc

@@ -122,14 +122,6 @@ LocatedEvent::LocatedEvent(EventType type,
       system_location_(0, 0) {
 }
 
-LocatedEvent::LocatedEvent(const LocatedEvent& model)
-    : Event(model),
-      location_(model.location_),
-      root_location_(model.root_location_),
-      valid_system_location_(model.valid_system_location_),
-      system_location_(model.system_location_) {
-}
-
 void LocatedEvent::UpdateForRootTransform(const Transform& root_transform) {
   // Transform has to be done at root level.
   DCHECK_EQ(root_location_.x(), location_.x());
@@ -245,9 +237,6 @@ void MouseEvent::SetClickCount(int click_count) {
   set_flags(f);
 }
 
-MouseEvent::MouseEvent(const MouseEvent& model) : LocatedEvent(model) {
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // MouseWheelEvent
 
@@ -256,11 +245,6 @@ MouseWheelEvent::MouseWheelEvent(const base::NativeEvent& native_event)
       offset_(GetMouseWheelOffset(native_event)) {
 }
 
-MouseWheelEvent::MouseWheelEvent(const MouseEvent& mouse_event)
-    : MouseEvent(mouse_event),
-      offset_(GetMouseWheelOffset(mouse_event.native_event())) {
-}
-
 MouseWheelEvent::MouseWheelEvent(const ScrollEvent& scroll_event)
     : MouseEvent(scroll_event),
       offset_(scroll_event.y_offset()) {

ui/base/event.h

@@ -172,9 +172,6 @@ class UI_EXPORT LocatedEvent : public Event {
                const gfx::Point& root_location,
                int flags);
 
-  // Called from MouseEvent's copy ctor.
-  explicit LocatedEvent(const LocatedEvent& model);
-
   gfx::Point location_;
 
   // |location_| multiplied by an optional transformation matrix for
@@ -266,10 +263,6 @@ class UI_EXPORT MouseEvent : public LocatedEvent {
   // flags. Use this to determine the button that was pressed or released.
   int changed_button_flags() const { return changed_button_flags_; }
 
- protected:
-  // Called from MouseWheelEvent's ctor.
-  explicit MouseEvent(const MouseEvent& model);
-
  private:
   // Returns the repeat count based on the previous mouse click, if it is
   // recent enough and within a small enough distance.
@@ -291,7 +284,6 @@ class UI_EXPORT MouseWheelEvent : public MouseEvent {
   static const int kWheelDelta;
 
   explicit MouseWheelEvent(const base::NativeEvent& native_event);
-  explicit MouseWheelEvent(const MouseEvent& mouse_event);
   explicit MouseWheelEvent(const ScrollEvent& scroll_event);
 
   template <class T>

ui/views/widget/native_widget_aura.cc

@@ -797,10 +797,8 @@ bool NativeWidgetAura::ShouldDescendIntoChildForEventHandling(
 
 bool NativeWidgetAura::OnMouseEvent(ui::MouseEvent* event) {
   DCHECK(window_->IsVisible());
-  if (event->type() == ui::ET_MOUSEWHEEL) {
-    ui::MouseWheelEvent mwe(*event);
-    return delegate_->OnMouseEvent(mwe);
-  }
+  if (event->type() == ui::ET_MOUSEWHEEL)
+    return delegate_->OnMouseEvent(*event);
 
   if (event->type() == ui::ET_SCROLL) {
     if (delegate_->OnMouseEvent(*event))