[DeviceService] Move screen_orientation.mojom from //content to //device.

content/renderer/screen_orientation/screen_orientation_dispatcher.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 "content/renderer/screen_orientation/screen_orientation_dispatcher.h"
 
 #include "content/public/common/associated_interface_provider.h"
 #include "content/public/renderer/render_frame.h"
 
 namespace content {
 
-using ::blink::mojom::ScreenOrientationLockResult;
+using device::mojom::ScreenOrientationLockResult;
 
 ScreenOrientationDispatcher::ScreenOrientationDispatcher(
     RenderFrame* render_frame)
     : RenderFrameObserver(render_frame) {
 }
 
 ScreenOrientationDispatcher::~ScreenOrientationDispatcher() {
 }
 
 void ScreenOrientationDispatcher::OnDestruct() {
@@ skipping 68 matching lines @@
 
 int ScreenOrientationDispatcher::GetRequestIdForTests() {
   if (pending_callbacks_.IsEmpty())
     return -1;
   CallbackMap::Iterator<blink::WebLockOrientationCallback> iterator(
       &pending_callbacks_);
   return iterator.GetCurrentKey();
 }
 
 }  // namespace content