Move chrome-specific SerializedNavigation code to chrome/.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 92831557d008176ca7762fb489b2c3cf540e379b..083e343ee1ee0668fb4d6e7ea4aadd1059869922 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -177,7 +177,6 @@
 #include "content/public/common/sandbox_type.h"
 #include "content/public/common/service_manager_connection.h"
 #include "content/public/common/service_names.mojom.h"
-#include "content/public/common/url_constants.h"
 #include "content/public/common/url_utils.h"
 #include "content/public/common/web_preferences.h"
 #include "device/bluetooth/adapter_factory.h"
@@ -654,7 +653,7 @@ bool HandleWebUI(GURL* url, content::BrowserContext* browser_context) {
   if (user_manager::UserManager::Get()->IsLoggedInAsGuest()) {
     if (url->SchemeIs(content::kChromeUIScheme) &&
         (url->DomainIs(chrome::kChromeUIBookmarksHost) ||
-         url->DomainIs(content::kChromeUIHistoryHost))) {
+         url->DomainIs(chrome::kChromeUIHistoryHost))) {
       // Rewrite with new tab URL
       *url = GURL(chrome::kChromeUINewTabURL);
     }