[views-mus] Prevent creating a native OzonePlatform in mus tests.

ui/keyboard/keyboard_controller.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/keyboard/keyboard_controller.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 78 matching lines @@
   void OnWindowTargetVisibilityChanged(bool visible) override {}
   bool HasHitTestMask() const override { return false; }
   void GetHitTestMask(gfx::Path* mask) const override {}
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardWindowDelegate);
 };
 
 void ToggleTouchEventLogging(bool enable) {
 #if defined(OS_CHROMEOS)
 #if defined(USE_OZONE)
-  ui::OzonePlatform::GetInstance()
-      ->GetInputController()
-      ->SetTouchEventLoggingEnabled(enable);
+  ui::InputController* controller =
+      ui::OzonePlatform::GetInstance()->GetInputController();
+  if (controller)
+    controller->SetTouchEventLoggingEnabled(enable);
 #elif defined(USE_X11)
   if (!base::SysInfo::IsRunningOnChromeOS())
     return;
   base::CommandLine command(
       base::FilePath("/opt/google/touchscreen/toggle_touch_event_logging"));
   if (enable)
     command.AppendArg("1");
   else
     command.AppendArg("0");
   VLOG(1) << "Running " << command.GetCommandLineString();
@@ skipping 410 matching lines @@
     int keyboard_height = GetContainerWindow()->bounds().height();
     const gfx::Rect& root_bounds = container_->GetRootWindow()->bounds();
     gfx::Rect new_bounds = root_bounds;
     new_bounds.set_y(root_bounds.height() - keyboard_height);
     new_bounds.set_height(keyboard_height);
     GetContainerWindow()->SetBounds(new_bounds);
   }
 }
 
 }  // namespace keyboard