mash: Fix launching chrome.

chrome/browser/chromeos/system/input_device_settings_impl_ozone.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/system/input_device_settings.h"
 
 #include "base/macros.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/ozone/public/input_controller.h"
 #include "ui/ozone/public/ozone_platform.h"
@@ skipping 36 matching lines @@
   // session.
   ui::InputController* input_controller_;
 
   // Respective device setting objects.
   TouchpadSettings current_touchpad_settings_;
   MouseSettings current_mouse_settings_;
 
   DISALLOW_COPY_AND_ASSIGN(InputDeviceSettingsImplOzone);
 };
 
+ui::InputController* GetInputController() {
+  return  // ui::OzonePlatform::GetInstance() ?
+      // ui::OzonePlatform::GetInstance()->GetInputController() :
+      ui::CreateStubInputController().release();
+}
+
 InputDeviceSettingsImplOzone::InputDeviceSettingsImplOzone()
-    : input_controller_(
-          ui::OzonePlatform::GetInstance()->GetInputController()) {
+    : input_controller_(GetInputController()) {
   // Make sure the input controller does exist.
-  DCHECK(ui::OzonePlatform::GetInstance()->GetInputController());
+  DCHECK(input_controller_);
 }
 
 void InputDeviceSettingsImplOzone::TouchpadExists(
     const DeviceExistsCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   callback.Run(input_controller_->HasTouchpad());
 }
 
 void InputDeviceSettingsImplOzone::UpdateTouchpadSettings(
     const TouchpadSettings& settings) {
@@ skipping 82 matching lines @@
 void InputDeviceSettings::SetSettingsForTesting(
     InputDeviceSettings* test_settings) {
   if (g_test_instance == test_settings)
     return;
   delete g_test_instance;
   g_test_instance = test_settings;
 }
 
 }  // namespace system
 }  // namespace chromeos