aura: Make Window::HitTest() a private method.

ash/wm/overview/window_overview.cc

 // Copyright 2013 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 "ash/wm/overview/window_overview.h"
 
 #include <algorithm>
 
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/screen_util.h"
@@ skipping 280 matching lines @@
   // gesture could be used to activate the window.
   event->SetHandled();
   window_selector_->SelectWindow(target);
 }
 
 aura::Window* WindowOverview::GetEventTarget(ui::LocatedEvent* event) {
   aura::Window* target = static_cast<aura::Window*>(event->target());
   // If the target window doesn't actually contain the event location (i.e.
   // mouse down over the window and mouse up elsewhere) then do not select the
   // window.
-  if (!target->HitTest(event->location()))
+  if (!target->ContainsPoint(event->location()))
     return NULL;
 
   return GetTargetedWindow(target);
 }
 
 aura::Window* WindowOverview::GetTargetedWindow(aura::Window* window) {
   for (WindowSelectorItemList::iterator iter = windows_->begin();
        iter != windows_->end(); ++iter) {
     aura::Window* selected = (*iter)->TargetedWindow(window);
     if (selected)
@@ skipping 135 matching lines @@
 }
 
 gfx::Rect WindowOverview::GetSelectionBounds(size_t index) {
   gfx::Rect bounds((*windows_)[index]->bounds());
   bounds.Inset(-kWindowOverviewSelectionPadding,
                -kWindowOverviewSelectionPadding);
   return bounds;
 }
 
 }  // namespace ash