Hoist TrimHttpPrefix() so we only have one copy, not one per provider....

chrome/browser/autocomplete/history_url_provider.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_BROWSER_AUTOCOMPLETE_HISTORY_URL_PROVIDER_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_URL_PROVIDER_H_
 
 #include <map>
 #include <vector>
 #include <deque>
@@ skipping 237 matching lines @@
   // * Prepending file:// to file URLs
   // * Converting drive letters in file URLs to uppercase
   // * Converting case-insensitive parts of URLs (like the scheme and domain)
   //   to lowercase
   // * Convert spaces to %20s
   // Note that we don't do this in AutocompleteInput's constructor, because if
   // e.g. we convert a Unicode hostname to punycode, other providers will show
   // output that surprises the user ("Search Google for xn--6ca.com").
   static std::wstring FixupUserInput(const AutocompleteInput& input);
 
-  // Trims "http:" and up to two subsequent slashes from |url|.  Returns the
-  // number of characters that were trimmed.
-  static size_t TrimHttpPrefix(std::wstring* url);
-
   // Returns true if |url| is just a host (e.g. "http://www.google.com/") and
   // not some other subpage (e.g. "http://www.google.com/foo.html").
   static bool IsHostOnly(const GURL& url);
 
   // Acts like the > operator for URLInfo classes.
   static bool CompareHistoryMatch(const HistoryMatch& a,
                                   const HistoryMatch& b);
 
   // Returns the set of prefixes to use for prefixes_.
   static Prefixes GetPrefixes();
@@ skipping 113 matching lines @@
   const Prefixes prefixes_;
 
   // Params for the current query.  The provider should not free this directly;
   // instead, it is passed as a parameter through the history backend, and the
   // parameter itself is freed once it's no longer needed.  The only reason we
   // keep this member is so we can set the cancel bit on it.
   HistoryURLProviderParams* params_;
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_URL_PROVIDER_H_