Move some content url constants to /url.

chrome/browser/history/url_database.cc

Index: chrome/browser/history/url_database.cc
diff --git a/chrome/browser/history/url_database.cc b/chrome/browser/history/url_database.cc
index 605213b135e371ba7d38a449a7751bc39df394a3..58ba4e4e5ba48c9cf059301be09d0c96b20d5349 100644
--- a/chrome/browser/history/url_database.cc
+++ b/chrome/browser/history/url_database.cc
@@ -13,6 +13,7 @@
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/url_constants.h"
 #include "net/base/net_util.h"
+#include "net/base/url_constants.h"
 #include "sql/statement.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "url/gurl.h"
@@ -312,11 +313,8 @@ bool URLDatabase::AutocompleteForPrefix(const std::string& prefix,
 }
 
 bool URLDatabase::IsTypedHost(const std::string& host) {
-  const char* schemes[] = {
-    content::kHttpScheme,
-    content::kHttpsScheme,
-    content::kFtpScheme
-  };
+  const char* schemes[] = {net::kHttpScheme, net::kHttpsScheme,
+                           content::kFtpScheme};
   URLRows dummy;
   for (size_t i = 0; i < arraysize(schemes); ++i) {
     std::string scheme_and_host(schemes[i]);