Move some content url constants to /url.

chrome/common/content_settings_helper.cc

Index: chrome/common/content_settings_helper.cc
diff --git a/chrome/common/content_settings_helper.cc b/chrome/common/content_settings_helper.cc
index 9fa5607ccf48aa92275add992e47aebe79fdfabe..319cec458d79fbd670432ca77b1df454384f8b9d 100644
--- a/chrome/common/content_settings_helper.cc
+++ b/chrome/common/content_settings_helper.cc
@@ -8,6 +8,7 @@
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/url_constants.h"
 #include "url/gurl.h"
+#include "url/url_constants.h"
 
 namespace content_settings_helper {
 
@@ -15,7 +16,7 @@ std::string OriginToString(const GURL& origin) {
   std::string port_component(origin.IntPort() != url_parse::PORT_UNSPECIFIED
                                  ? ":" + origin.port()
                                  : std::string());
-  std::string scheme_component(!origin.SchemeIs(content::kHttpScheme)
+  std::string scheme_component(!origin.SchemeIs(url::kHttpScheme)
                                    ? origin.scheme() +
                                      content::kStandardSchemeSeparator
                                    : std::string());