Remove Frame::host() method

third_party/WebKit/Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 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 2232 matching lines @@
 
 bool WebLocalFrameImpl::find(int identifier,
                              const WebString& searchText,
                              const WebFindOptions& options,
                              bool wrapWithinFrame,
                              bool* activeNow) {
   if (!frame())
     return false;
 
   // Unlikely, but just in case we try to find-in-page on a detached frame.
-  DCHECK(frame()->host());
+  DCHECK(frame()->page());
 
   // Up-to-date, clean tree is required for finding text in page, since it
   // relies on TextIterator to look over the text.
   frame()->document()->updateStyleAndLayoutIgnorePendingStylesheets();
 
   return ensureTextFinder().find(identifier, searchText, options,
                                  wrapWithinFrame, activeNow);
 }
 
 void WebLocalFrameImpl::stopFinding(StopFindAction action) {
@@ skipping 239 matching lines @@
         createMarkup(startPosition, endPosition, AnnotateForInterchange,
                      ConvertBlocksToInlines::NotConvert, ResolveNonLocalURLs);
   } else {
     clipHtml =
         createMarkup(endPosition, startPosition, AnnotateForInterchange,
                      ConvertBlocksToInlines::NotConvert, ResolveNonLocalURLs);
   }
 }
 
 }  // namespace blink