Move some content url constants to /url.

chrome/renderer/safe_browsing/phishing_classifier.cc

Index: chrome/renderer/safe_browsing/phishing_classifier.cc
diff --git a/chrome/renderer/safe_browsing/phishing_classifier.cc b/chrome/renderer/safe_browsing/phishing_classifier.cc
index f48e6c138c74e444e79c58d8edb32809d2b6daa7..3f2e98c1aa3387cbd59ea0d3ee5ce33f4afbc445 100644
--- a/chrome/renderer/safe_browsing/phishing_classifier.cc
+++ b/chrome/renderer/safe_browsing/phishing_classifier.cc
@@ -118,7 +118,7 @@ void PhishingClassifier::BeginFeatureExtraction() {
   // Check whether the URL is one that we should classify.
   // Currently, we only classify http: URLs that are GET requests.
   GURL url(frame->document().url());
-  if (!url.SchemeIs(content::kHttpScheme)) {
+  if (!url.SchemeIs(url::kHttpScheme)) {
     RunFailureCallback();
     return;
   }