Move some content url constants to /url.

chrome/browser/history/visit_database.cc

Index: chrome/browser/history/visit_database.cc
diff --git a/chrome/browser/history/visit_database.cc b/chrome/browser/history/visit_database.cc
index 20e98b11807ef7964a020374b97ec5a2376113d0..cde514febcb2e142719b078d19d276e00d58049d 100644
--- a/chrome/browser/history/visit_database.cc
+++ b/chrome/browser/history/visit_database.cc
@@ -16,6 +16,7 @@
 #include "chrome/common/url_constants.h"
 #include "content/public/common/page_transition_types.h"
 #include "sql/statement.h"
+#include "url/url_constants.h"
 
 namespace history {
 
@@ -490,8 +491,8 @@ bool VisitDatabase::GetRedirectToVisit(VisitID to_visit,
 bool VisitDatabase::GetVisibleVisitCountToHost(const GURL& url,
                                                int* count,
                                                base::Time* first_visit) {
-  if (!url.SchemeIs(content::kHttpScheme) &&
-      !url.SchemeIs(content::kHttpsScheme))
+  if (!url.SchemeIs(url::kHttpScheme) &&
+      !url.SchemeIs(url::kHttpsScheme))
     return false;
 
   // We need to search for URLs with a matching host/port. One way to query for