Centralize ScreenOrientationProvider logic, add platform delegates

content/browser/screen_orientation/screen_orientation_dispatcher_host_impl.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/browser/screen_orientation/screen_orientation_dispatcher_host_impl.h"
 
 #include "content/common/screen_orientation_messages.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/screen_orientation_provider.h"
 #include "content/public/browser/web_contents.h"
 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
 
 namespace content {
 
 ScreenOrientationDispatcherHostImpl::LockInformation::LockInformation(
     int request_id, int process_id, int routing_id)
     : request_id(request_id),
       process_id(process_id),
       routing_id(routing_id) {
 }
 
 ScreenOrientationDispatcherHostImpl::ScreenOrientationDispatcherHostImpl(
     WebContents* web_contents)
   : WebContentsObserver(web_contents),
     current_lock_(NULL) {
-  provider_.reset(ScreenOrientationProvider::Create(this, web_contents));
+  provider_.reset(new ScreenOrientationProvider(this, web_contents));
 }
 
 ScreenOrientationDispatcherHostImpl::~ScreenOrientationDispatcherHostImpl() {
   ResetCurrentLock();
 }
 
 void ScreenOrientationDispatcherHostImpl::ResetCurrentLock() {
   if (current_lock_) {
     delete current_lock_;
     current_lock_ = 0;
@@ skipping 96 matching lines @@
                     blink::WebLockOrientationErrorCanceled);
   }
 
   if (!provider_)
     return;
 
   provider_->UnlockOrientation();
 }
 
 }  // namespace content