Rename Supplement::host() to Supplement::supplementable()

third_party/WebKit/Source/modules/donottrack/NavigatorDoNotTrack.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 44 matching lines @@
     provideTo(navigator, supplementName(), supplement);
   }
   return *supplement;
 }
 
 String NavigatorDoNotTrack::doNotTrack(Navigator& navigator) {
   return NavigatorDoNotTrack::from(navigator).doNotTrack();
 }
 
 String NavigatorDoNotTrack::doNotTrack() {
-  LocalFrame* frame = host()->frame();
+  LocalFrame* frame = supplementable()->frame();
   if (!frame || !frame->loader().client())
     return String();
   return frame->loader().client()->doNotTrackValue();
 }
 
 }  // namespace blink