Add SetProvider function

content/browser/screen_orientation/screen_orientation_dispatcher_host.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.h"
 
 #include "content/browser/screen_orientation/screen_orientation_provider.h"
 #include "content/common/screen_orientation_messages.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
@@ skipping 117 matching lines @@
     NotifyLockError(current_lock_->request_id, render_frame_host,
                     blink::WebLockOrientationErrorCanceled);
   }
 
   if (!provider_)
     return;
 
   provider_->UnlockOrientation();
 }
 
+void ScreenOrientationDispatcherHost::SetProvider(
+    ScreenOrientationProvider* provider) {
+  provider_.reset(provider);
+}
+
 }  // namespace content