Move some content url constants to /url.

chrome/browser/history/history_backend.cc

Index: chrome/browser/history/history_backend.cc
diff --git a/chrome/browser/history/history_backend.cc b/chrome/browser/history/history_backend.cc
index 6d3b98ee3f6b66dd52132c55bb6372211c75dd31..f98cb455b8b1fdf7b881232089235453f529b706 100644
--- a/chrome/browser/history/history_backend.cc
+++ b/chrome/browser/history/history_backend.cc
@@ -42,6 +42,7 @@
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
+#include "net/base/url_constants.h"
 #include "sql/error_delegate_util.h"
 #include "url/gurl.h"
 
@@ -405,8 +406,8 @@ void HistoryBackend::AddPage(const HistoryAddPageArgs& request) {
       !is_keyword_generated) {
     const GURL& origin_url(has_redirects ?
         request.redirects[0] : request.url);
-    if (origin_url.SchemeIs(content::kHttpScheme) ||
-        origin_url.SchemeIs(content::kHttpsScheme) ||
+    if (origin_url.SchemeIs(net::kHttpScheme) ||
+        origin_url.SchemeIs(net::kHttpsScheme) ||
         origin_url.SchemeIs(content::kFtpScheme)) {
       std::string host(origin_url.host());
       size_t registry_length =