Move some content url constants to /url.

chrome/browser/autocomplete/history_url_provider.cc

Index: chrome/browser/autocomplete/history_url_provider.cc
diff --git a/chrome/browser/autocomplete/history_url_provider.cc b/chrome/browser/autocomplete/history_url_provider.cc
index 6301c285abe46ed9648656619ea5aba6d6e67df8..7d82b0e84a25ae7b7587eff903bcf3b22d25ca68 100644
--- a/chrome/browser/autocomplete/history_url_provider.cc
+++ b/chrome/browser/autocomplete/history_url_provider.cc
@@ -37,6 +37,7 @@
 #include "net/base/net_util.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "url/gurl.h"
+#include "url/url_constants.h"
 #include "url/url_parse.h"
 #include "url/url_util.h"
 
@@ -862,7 +863,7 @@ bool HistoryURLProvider::CanFindIntranetURL(
   // input's text and parts between Parse() and here, it seems better to be
   // paranoid and check.
   if ((input.type() != AutocompleteInput::UNKNOWN) ||
-      !LowerCaseEqualsASCII(input.scheme(), content::kHttpScheme) ||
+      !LowerCaseEqualsASCII(input.scheme(), url::kHttpScheme) ||
       !input.parts().host.is_nonempty())
     return false;
   const std::string host(base::UTF16ToUTF8(