Gets InputMethodFocus tests added in r327286 working on Mac

ui/views/touchui/touch_selection_controller_impl.cc

 // Copyright (c) 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 "ui/views/touchui/touch_selection_controller_impl.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/time/time.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/env.h"
@@ skipping 615 matching lines @@
 }
 
 void TouchSelectionControllerImpl::OnAncestorWindowTransformed(
     aura::Window* window,
     aura::Window* ancestor) {
   client_view_->DestroyTouchSelection();
 }
 
 void TouchSelectionControllerImpl::OnWidgetClosing(Widget* widget) {
   DCHECK_EQ(client_widget_, widget);
+  client_widget_->RemoveObserver(this);
   client_widget_ = nullptr;
 }
 
 void TouchSelectionControllerImpl::OnWidgetBoundsChanged(
     Widget* widget,
     const gfx::Rect& new_bounds) {
   DCHECK_EQ(client_widget_, widget);
   SelectionChanged();
 }
 
@@ skipping 103 matching lines @@
 
 views::WidgetDelegateView* TouchSelectionControllerImpl::GetHandle1View() {
   return selection_handle_1_.get();
 }
 
 views::WidgetDelegateView* TouchSelectionControllerImpl::GetHandle2View() {
   return selection_handle_2_.get();
 }
 
 }  // namespace views