Apply scoped_ptr -> std::unique_ptr conversion to comment

content/renderer/render_view_impl.cc

 // 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.
 
 #include "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <memory>
 
@@ skipping 836 matching lines @@
   // If file chooser is still waiting for answer, dispatch empty answer.
   while (!file_chooser_completions_.empty()) {
     if (file_chooser_completions_.front()->completion) {
       file_chooser_completions_.front()->completion->didChooseFile(
           WebVector<WebString>());
     }
     file_chooser_completions_.pop_front();
   }
 
 #if defined(OS_ANDROID)
-  // The date/time picker client is both a scoped_ptr member of this class and
-  // a RenderViewObserver. Reset it to prevent double deletion.
+  // The date/time picker client is both a std::unique_ptr member of this class
+  // and a RenderViewObserver. Reset it to prevent double deletion.
   date_time_picker_client_.reset();
 #endif
 
 #ifndef NDEBUG
   // Make sure we are no longer referenced by the ViewMap or RoutingIDViewMap.
   ViewMap* views = g_view_map.Pointer();
   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it)
     DCHECK_NE(this, it->second) << "Failed to call Close?";
   RoutingIDViewMap* routing_id_views = g_routing_id_view_map.Pointer();
   for (RoutingIDViewMap::iterator it = routing_id_views->begin();
@@ skipping 2517 matching lines @@
         return render_frame->focused_pepper_plugin();
     }
     frame = frame->traverseNext(false);
   }
 
   return nullptr;
 }
 #endif
 
 }  // namespace content