Remove stops_event_propagation from Window, since it's broken.

ui/aura/window.h

 // 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.
 
 #ifndef UI_AURA_WINDOW_H_
 #define UI_AURA_WINDOW_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 200 matching lines @@
   gfx::NativeCursor GetCursor(const gfx::Point& point) const;
 
   // Window takes ownership of the EventFilter.
   void SetEventFilter(EventFilter* event_filter);
   EventFilter* event_filter() { return event_filter_.get(); }
 
   // Add/remove observer.
   void AddObserver(WindowObserver* observer);
   void RemoveObserver(WindowObserver* observer);
 
-  // When set to true, this Window will stop propagation of all events targeted
-  // at Windows below it in the z-order, but only if this Window has children.
-  // This is used to implement lock-screen type functionality where we do not
-  // want events to be sent to running logged-in windows when the lock screen is
-  // displayed.
-  void set_stops_event_propagation(bool stops_event_propagation) {
-    stops_event_propagation_ = stops_event_propagation;
-  }
-
   void set_ignore_events(bool ignore_events) { ignore_events_ = ignore_events; }
 
   // Sets the window to grab hits for an area extending |outer| pixels outside
   // its bounds and |inner| pixels inside its bounds (even if that inner region
   // overlaps a child window).  This can be used to create an invisible non-
   // client area, for example if your windows have no visible frames but still
   // need to have resize edges.  Both |outer| and |inner| must be >= 0.
   void SetHitTestBoundsOverride(int outer, int inner);
 
   // Returns the hit test bounds override set above.
@@ skipping 47 matching lines @@
   // Does a mouse capture on the window. This does nothing if the window isn't
   // showing (VISIBILITY_SHOWN) or isn't contained in a valid window hierarchy.
   void SetCapture();
 
   // Releases a mouse capture.
   void ReleaseCapture();
 
   // Returns true if this window has a mouse capture.
   bool HasCapture();
 
-  // Returns true if this window is currently stopping event
-  // propagation for any windows behind it in the z-order.
-  bool StopsEventPropagation() const;
-
   // Suppresses painting window content by disgarding damaged rect and ignoring
   // new paint requests.
   void SuppressPaint();
 
   // Sets the |value| of the given window |property|. Setting to the default
   // value (e.g., NULL) removes the property. The caller is responsible for the
   // lifetime of any object set as a property on the Window.
   template<typename T>
   void SetProperty(const WindowProperty<T>* property, T value);
 
@@ skipping 40 matching lines @@
   // specific changes. Called from Show()/Hide().
   void SetVisible(bool visible);
 
   // Schedules a paint for the Window's entire bounds.
   void SchedulePaint();
 
   // Gets a Window (either this one or a subwindow) containing |local_point|.
   // If |return_tightest| is true, returns the tightest-containing (i.e.
   // furthest down the hierarchy) Window containing the point; otherwise,
   // returns the loosest.  If |for_event_handling| is true, then hit-test masks
-  // and StopsEventPropagation() are honored; otherwise, only bounds checks are
-  // performed.
+  // are honored; otherwise, only bounds checks are performed.
   Window* GetWindowForPoint(const gfx::Point& local_point,
                             bool return_tightest,
                             bool for_event_handling);
 
   // Called when this window's parent has changed.
   void OnParentChanged();
 
   // Determines the real location for stacking |child| and invokes
   // StackChildRelativeToImpl().
   void StackChildRelativeTo(Window* child,
@@ skipping 12 matching lines @@
   // Window has been added or is about to be removed from a RootWindow.
   void NotifyAddedToRootWindow();
   void NotifyRemovingFromRootWindow();
 
   // Overridden from ui::LayerDelegate:
   virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE;
 
   // Updates the layer name with a name based on the window's name and id.
   void UpdateLayerName(const std::string& name);
 
-  // Returns true if this window is behind a window that stops event
-  // propagation.
-  bool IsBehindStopEventsWindow() const;
-
   client::WindowType type_;
 
   WindowDelegate* delegate_;
 
   // The Window will own its layer unless ownership is relinquished via a call
   // to AcquireLayer(). After that moment |layer_| will still be valid but
   // |layer_owner_| will be NULL. The reason for releasing ownership is that
   // the client may wish to animate the window's layer beyond the lifetime of
   // the window, e.g. fading it out when it is destroyed.
   scoped_ptr<ui::Layer> layer_owner_;
@@ skipping 21 matching lines @@
   string16 title_;
 
   // Whether layer is initialized as non-opaque.
   bool transparent_;
 
   scoped_ptr<EventFilter> event_filter_;
   scoped_ptr<LayoutManager> layout_manager_;
 
   void* user_data_;
 
-  // When true, events are not sent to windows behind this one in the z-order,
-  // provided this window has children. See set_stops_event_propagation().
-  bool stops_event_propagation_;
-
   // Makes the window pass all events through to any windows behind it.
   bool ignore_events_;
 
   // See SetHitTestBoundsOverride().
   int hit_test_bounds_override_outer_;
   int hit_test_bounds_override_inner_;
 
   ObserverList<WindowObserver> observers_;
 
   // Value struct to keep the name and deallocator for this property.
   // Key cannot be used for this purpose because it can be char* or
   // WindowProperty<>.
   struct Value {
     const char* name;
     intptr_t value;
     PropertyDeallocator deallocator;
   };
 
   std::map<const void*, Value> prop_map_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_H_