Use OnceCallback on Mojo interfaces in //device/screen_orientation

content/browser/screen_orientation/screen_orientation_provider.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_
 #define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
@@ skipping 15 matching lines @@
 class CONTENT_EXPORT ScreenOrientationProvider
     : NON_EXPORTED_BASE(public device::mojom::ScreenOrientation),
       public WebContentsObserver {
  public:
   ScreenOrientationProvider(WebContents* web_contents);
 
   ~ScreenOrientationProvider() override;
 
   // device::mojom::ScreenOrientation:
   void LockOrientation(blink::WebScreenOrientationLockType orientation,
-                       const LockOrientationCallback& callback) override;
+                       LockOrientationCallback callback) override;
   void UnlockOrientation() override;
 
   // Inform about a screen orientation update. It is called to let the provider
   // know if a lock has been resolved.
   void OnOrientationChange();
 
   // Provide a delegate which creates delegates for platform implementations.
   // The delegate is not owned by ScreenOrientationProvider.
   static void SetDelegate(ScreenOrientationDelegate* delegate_);
 
@@ skipping 29 matching lines @@
   LockOrientationCallback pending_callback_;
 
   WebContentsFrameBindingSet<device::mojom::ScreenOrientation> bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenOrientationProvider);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_