Consolidate scheme checks into an easy GURL method

chrome/browser/net/predictor.cc

Index: chrome/browser/net/predictor.cc
diff --git a/chrome/browser/net/predictor.cc b/chrome/browser/net/predictor.cc
index 48239100b5ea65e8b81c72772bea5e235509412d..f01f6c62a74b420ded488b59d41196fae21a08a5 100644
--- a/chrome/browser/net/predictor.cc
+++ b/chrome/browser/net/predictor.cc
@@ -466,7 +466,7 @@ UrlList Predictor::GetPredictedUrlListAtStartup(
       GURL gurl = tab_start_pref.urls[i];
       if (!gurl.is_valid() || gurl.SchemeIsFile() || gurl.host().empty())
         continue;
-      if (gurl.SchemeIs("http") || gurl.SchemeIs("https"))
+      if (gurl.SchemeIsHTTPOrHTTPS())
         urls.push_back(gurl.GetWithEmptyPath());
     }
   }
@@ -1300,7 +1300,7 @@ void Predictor::InitialObserver::Append(const GURL& url,
   if (kStartupResolutionCount <= first_navigations_.size())
     return;
 
-  DCHECK(url.SchemeIs("http") || url.SchemeIs("https"));
+  DCHECK(url.SchemeIsHTTPOrHTTPS());
   DCHECK_EQ(url, Predictor::CanonicalizeUrl(url));
   if (first_navigations_.find(url) == first_navigations_.end())
     first_navigations_[url] = base::TimeTicks::Now();