Wires up ShouldDescendIntoChildForEventHandling() for DesktopNativeWidgetAura

ui/views/widget/native_widget_delegate.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_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
 
-#include <vector>
-
 #include "ui/events/event_constants.h"
+#include "ui/gfx/native_widget_types.h"
 #include "ui/views/views_export.h"
 
 namespace gfx {
 class Path;
 class Point;
 class Size;
 }
 
 namespace ui {
 class GestureEvent;
@@ skipping 100 matching lines @@
   // Event handlers.
   virtual void OnKeyEvent(ui::KeyEvent* event) = 0;
   virtual void OnMouseEvent(ui::MouseEvent* event) = 0;
   virtual void OnMouseCaptureLost() = 0;
   virtual void OnScrollEvent(ui::ScrollEvent* event) = 0;
   virtual void OnGestureEvent(ui::GestureEvent* event) = 0;
 
   // Runs the specified native command. Returns true if the command is handled.
   virtual bool ExecuteCommand(int command_id) = 0;
 
-  // Returns the child Layers of the Widgets layer that were created by Views.
-  virtual const std::vector<ui::Layer*>& GetRootLayers() = 0;
-
   // Returns true if window has a hit-test mask.
   virtual bool HasHitTestMask() const = 0;
 
   // Provides the hit-test mask if HasHitTestMask above returns true.
   virtual void GetHitTestMask(gfx::Path* mask) const = 0;
 
   virtual Widget* AsWidget() = 0;
   virtual const Widget* AsWidget() const = 0;
 
   // Sets-up the focus manager with the view that should have focus when the
   // window is shown the first time.  It takes the intended |show_state| of the
   // window in order to decide whether the window should be focused now or
   // later.  Returns true if the initial focus has been set or the window should
   // not set the initial focus, or false if the caller should set the initial
   // focus (if any).
   virtual bool SetInitialFocus(ui::WindowShowState show_state) = 0;
+
+  // Returns true if event handling should descend into |child|. |root_layer| is
+  // the layer associated with the root Window and |child_layer| the layer
+  // associated with |child|. |location| is in terms of the Window.
+  virtual bool ShouldDescendIntoChildForEventHandling(
+      ui::Layer* root_layer,
+      gfx::NativeView child,
+      ui::Layer* child_layer,
+      const gfx::Point& location) = 0;
 };
 
 }  // namespace internal
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_