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

chrome/browser/autocomplete/autocomplete.cc

 // 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.
 
 #include "chrome/browser/autocomplete/autocomplete.h"
 
 #include <algorithm>
 
 #include "app/l10n_util.h"
 #include "base/basictypes.h"
 #include "base/string_util.h"
 #include "chrome/browser/autocomplete/history_url_provider.h"
 #include "chrome/browser/autocomplete/history_contents_provider.h"
 #include "chrome/browser/autocomplete/keyword_provider.h"
 #include "chrome/browser/autocomplete/search_provider.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/dom_ui/history_ui.h"
 #include "chrome/browser/external_protocol_handler.h"
 #include "chrome/browser/net/url_fixer_upper.h"
 #include "chrome/browser/profile.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
 #include "chrome/common/url_constants.h"
 #include "googleurl/src/gurl.h"
 #include "googleurl/src/url_canon_ip.h"
+#include "googleurl/src/url_util.h"
 #include "grit/generated_resources.h"
 #include "net/base/net_util.h"
 #include "net/base/registry_controlled_domain.h"
 #include "net/url_request/url_request.h"
 
 using base::TimeDelta;
 
 // AutocompleteInput ----------------------------------------------------------
 
 AutocompleteInput::AutocompleteInput(const std::wstring& text,
@@ skipping 430 matching lines @@
 AutocompleteProvider::~AutocompleteProvider() {
   Stop();
 }
 
 void AutocompleteProvider::SetProfile(Profile* profile) {
   DCHECK(profile);
   Stop();  // It makes no sense to continue running a query from an old profile.
   profile_ = profile;
 }
 
+// static
+size_t AutocompleteProvider::TrimHttpPrefix(std::wstring* url) {
+  url_parse::Component scheme;
+  if (!url_util::FindAndCompareScheme(WideToUTF8(*url), chrome::kHttpScheme,
+                                      &scheme))
+    return 0;  // Not "http".
+
+  // Erase scheme plus up to two slashes.
+  size_t prefix_len = scheme.end() + 1;  // "http:"
+  const size_t after_slashes = std::min(url->length(),
+                                        static_cast<size_t>(scheme.end() + 3));
+  while ((prefix_len < after_slashes) && ((*url)[prefix_len] == L'/'))
+    ++prefix_len;
+  if (prefix_len == url->length())
+    url->clear();
+  else
+    url->erase(url->begin(), url->begin() + prefix_len);
+  return prefix_len;
+}
+
 void AutocompleteProvider::UpdateStarredStateOfMatches() {
   if (matches_.empty())
     return;
 
   if (!profile_)
     return;
   BookmarkModel* bookmark_model = profile_->GetBookmarkModel();
   if (!bookmark_model || !bookmark_model->IsLoaded())
     return;
 
@@ skipping 381 matching lines @@
     match.contents_class.push_back(
         ACMatchClassification(keyword_offset + input_.text().size(),
                               ACMatchClassification::NONE));
   }
   match.destination_url =
       HistoryUI::GetHistoryURLWithSearchText(input_.text());
   match.transition = PageTransition::AUTO_BOOKMARK;
   match.provider = history_contents_provider_;
   latest_result_.AddMatch(match);
 }