Remove dead DocumentState metrics tracking code

third_party/WebKit/Source/core/loader/FrameLoaderClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 82 matching lines @@
   virtual void dispatchDidLoadResourceFromMemoryCache(
       const ResourceRequest&,
       const ResourceResponse&) = 0;
 
   virtual void dispatchDidHandleOnloadEvents() = 0;
   virtual void dispatchDidReceiveServerRedirectForProvisionalLoad() = 0;
   virtual void dispatchDidNavigateWithinPage(HistoryItem*,
                                              HistoryCommitType,
                                              bool contentInitiated) {}
   virtual void dispatchWillCommitProvisionalLoad() = 0;
-  virtual void dispatchDidStartProvisionalLoad(double triggeringEventTime) = 0;
+  virtual void dispatchDidStartProvisionalLoad() = 0;
   virtual void dispatchDidReceiveTitle(const String&) = 0;
   virtual void dispatchDidChangeIcons(IconType) = 0;
   virtual void dispatchDidCommitLoad(HistoryItem*, HistoryCommitType) = 0;
   virtual void dispatchDidFailProvisionalLoad(const ResourceError&,
                                               HistoryCommitType) = 0;
   virtual void dispatchDidFailLoad(const ResourceError&, HistoryCommitType) = 0;
   virtual void dispatchDidFinishDocumentLoad() = 0;
   virtual void dispatchDidFinishLoad() = 0;
   virtual void dispatchDidChangeThemeColor() = 0;
 
@@ skipping 217 matching lines @@
   }
 
   // Overwrites the given URL to use an HTML5 embed if possible. An empty URL is
   // returned if the URL is not overriden.
   virtual KURL overrideFlashEmbedWithHTML(const KURL&) { return KURL(); }
 };
 
 }  // namespace blink
 
 #endif  // FrameLoaderClient_h