Aura: Update window frames, allow resize from outside window

ui/aura/window.h

Index: ui/aura/window.h
diff --git a/ui/aura/window.h b/ui/aura/window.h
index 64114406f661d2b469c5fb460483c911e03b6073..20a9f7e59502f6b7a705f781dc46a21291e3b0aa 100644
--- a/ui/aura/window.h
+++ b/ui/aura/window.h
@@ -225,6 +225,12 @@ class AURA_EXPORT Window : public ui::LayerDelegate {
 
   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.
@@ -411,6 +417,9 @@ class AURA_EXPORT Window : public ui::LayerDelegate {
   // 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_;