Convert //content/browser from scoped_ptr to std::unique_ptr

content/browser/web_contents/web_drag_source_mac.h

 // Copyright (c) 2012 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.
 
 #import <Cocoa/Cocoa.h>
 
+#include <memory>
+
 #include "base/files/file_path.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_nsobject.h"
-#include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
 namespace content {
 class WebContentsImpl;
 struct DropData;
 }
 
 // A class that handles tracking and event processing for a drag and drop
 // originating from the content area.
 CONTENT_EXPORT
 @interface WebDragSource : NSObject {
  @private
   // Our contents. Weak reference (owns or co-owns us).
   // An instance of this class may outlive |contents_|. The destructor of
   // |contents_| must set this ivar to |nullptr|.
   content::WebContentsImpl* contents_;
 
   // The view from which the drag was initiated. Weak reference.
   // An instance of this class may outlive |contentsView_|. The destructor of
   // |contentsView_| must set this ivar to |nullptr|.
   NSView* contentsView_;
 
   // Our drop data. Should only be initialized once.
-  scoped_ptr<content::DropData> dropData_;
+  std::unique_ptr<content::DropData> dropData_;
 
   // The image to show as drag image. Can be nil.
   base::scoped_nsobject<NSImage> dragImage_;
 
   // The offset to draw |dragImage_| at.
   NSPoint imageOffset_;
 
   // Our pasteboard.
   base::scoped_nsobject<NSPasteboard> pasteboard_;
 
@@ skipping 41 matching lines @@
 - (void)endDragAt:(NSPoint)screenPoint
         operation:(NSDragOperation)operation;
 
 // Call to drag a promised file to the given path (should be called before
 // -endDragAt:...); hook up to -namesOfPromisedFilesDroppedAtDestination:.
 // Returns the file name (not including path) of the file deposited (or which
 // will be deposited).
 - (NSString*)dragPromisedFileTo:(NSString*)path;
 
 @end