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

chrome/browser/autocomplete/autocomplete.cc

Index: chrome/browser/autocomplete/autocomplete.cc
===================================================================
--- chrome/browser/autocomplete/autocomplete.cc	(revision 17014)
+++ chrome/browser/autocomplete/autocomplete.cc	(working copy)
@@ -24,6 +24,7 @@
 #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"
@@ -474,6 +475,26 @@
   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;