Ensure on Windows AURA that the cursor stays within the bounds of the window during a LockMouse ope…

ui/aura/root_window.cc

 // 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.
 
 #include "ui/aura/root_window.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 305 matching lines @@
 }
 
 bool RootWindow::ConfineCursorToWindow() {
   // We would like to be able to confine the cursor to that window. However,
   // currently, we do not have such functionality in X. So we just confine
   // to the root window. This is ok because this option is currently only
   // being used in fullscreen mode, so root_window bounds = window bounds.
   return host_->ConfineCursorToRootWindow();
 }
 
+void RootWindow::UnConfineCursor() {
+  host_->UnConfineCursor();
+}
+
 void RootWindow::ScheduleRedrawRect(const gfx::Rect& damage_rect) {
   compositor_->ScheduleRedrawRect(damage_rect);
 }
 
 Window* RootWindow::GetGestureTarget(ui::GestureEvent* event) {
   Window* target = client::GetCaptureWindow(this);
   if (!target) {
     target = ConsumerToWindow(
         ui::GestureRecognizer::Get()->GetTargetForGestureEvent(event));
   }
@@ skipping 855 matching lines @@
 }
 
 gfx::Transform RootWindow::GetInverseRootTransform() const {
   float scale = ui::GetDeviceScaleFactor(layer());
   gfx::Transform transform;
   transform.Scale(1.0f / scale, 1.0f / scale);
   return transformer_->GetInverseTransform() * transform;
 }
 
 }  // namespace aura