Proper MouseEvent targeting. Adds a Window method that locates a Window for a given point.

aura/event.cc

 // Copyright (c) 2011 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.
 
 #include "aura/event.h"
 
+#include "aura/window.h"
+
 namespace aura {
 
 Event::Event(ui::EventType type, int flags)
     : type_(type),
       time_stamp_(base::Time::NowFromSystemTime()),
       flags_(flags) {
   Init();
 }
 
 Event::Event(NativeEvent native_event, ui::EventType type, int flags)
     : type_(type),
       time_stamp_(base::Time::NowFromSystemTime()),
       flags_(flags) {
   InitWithNativeEvent(native_event);
 }
 
 Event::Event(const Event& copy)
     : native_event_(copy.native_event_),
       type_(copy.type_),
       time_stamp_(copy.time_stamp_),
       flags_(copy.flags_) {
 }
 
+LocatedEvent::LocatedEvent(const LocatedEvent& model,
+                           Window* source,
+                           Window* target)
+    : Event(model),
+      location_(model.location_) {
+  if (target && target != source)
+    Window::ConvertPointToWindow(source, target, &location_);
+}
+
+MouseEvent::MouseEvent(const MouseEvent& model, Window* source, Window* target)
+    : LocatedEvent(model, source, target) {
+}
+
 }  // namespace aura