chromeos: Make InputEventsBlocker NOTIMPLEMENTED for mash

chrome/browser/chromeos/login/ui/input_events_blocker.cc

 // Copyright 2014 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 "chrome/browser/chromeos/login/ui/input_events_blocker.h"
 
 #include "ash/shell.h"
 #include "base/logging.h"
+#include "chrome/browser/ui/ash/ash_util.h"
 #include "ui/events/event.h"
 
 namespace chromeos {
 
 InputEventsBlocker::InputEventsBlocker() {
-  ash::Shell::GetInstance()->PrependPreTargetHandler(this);
-  VLOG(1) << "InputEventsBlocker " << this << " created.";
+  // TODO(mash): Implement a mash version. This will probably need to talk to
+  // the window server.
+  if (!chrome::IsRunningInMash()) {
+    ash::Shell::GetInstance()->PrependPreTargetHandler(this);
+    VLOG(1) << "InputEventsBlocker " << this << " created.";
+  } else {
+    NOTIMPLEMENTED();
+  }
 }
 
 InputEventsBlocker::~InputEventsBlocker() {
-  ash::Shell::GetInstance()->RemovePreTargetHandler(this);
-  VLOG(1) << "InputEventsBlocker " << this << " destroyed.";
+  if (!chrome::IsRunningInMash()) {
+    ash::Shell::GetInstance()->RemovePreTargetHandler(this);
+    VLOG(1) << "InputEventsBlocker " << this << " destroyed.";
+  } else {
+    NOTIMPLEMENTED();
+  }
 }
 
 void InputEventsBlocker::OnKeyEvent(ui::KeyEvent* event) {
   event->StopPropagation();
 }
 
 void InputEventsBlocker::OnMouseEvent(ui::MouseEvent* event) {
   event->StopPropagation();
 }
 
 void InputEventsBlocker::OnTouchEvent(ui::TouchEvent* event) {
   event->StopPropagation();
 }
 
 void InputEventsBlocker::OnGestureEvent(ui::GestureEvent* event) {
   event->StopPropagation();
 }
 
 }  // namespace chromeos