Aura: Update window frames, allow resize from outside window

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 207 matching lines @@
   // 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; }
 
+  // When non-zero insets the window's bounds by |inset| when performing hit
+  // tests for event handling.  Pass a negative value for |inset| to respond to
+  // events that occur slightly outside a window's bounds.
+  void set_hit_test_bounds_inset(int inset) { hit_test_bounds_inset_ = inset; }
+  int hit_test_bounds_inset() const { return hit_test_bounds_inset_; }
+
   // Returns true if the |point_in_root| in root window's coordinate falls
   // within this window's bounds. Returns false if the window is detached
   // from root window.
   bool ContainsPointInRoot(const gfx::Point& point_in_root);
 
   // Returns true if relative-to-this-Window's-origin |local_point| falls
   // within this Window's bounds.
   bool ContainsPoint(const gfx::Point& local_point);
 
   // Returns true if the mouse pointer at relative-to-this-Window's-origin
@@ skipping 166 matching lines @@
 
   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_;
 
+  // Inset the window bounds by this amount when doing hit testing for events.
+  int hit_test_bounds_inset_;
+
   ObserverList<WindowObserver> observers_;
 
   std::map<const void*, intptr_t> prop_map_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_H_