Consolidate scheme checks into an easy GURL method

chrome/browser/google/google_util.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/google/google_util.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 168 matching lines @@
   if (LowerCaseEqualsASCII(host_minus_tld, "google."))
     return true;
   if (subdomain_permission == ALLOW_SUBDOMAIN)
     return EndsWith(host_minus_tld, ".google.", false);
   return LowerCaseEqualsASCII(host_minus_tld, "www.google.");
 }
 
 bool IsGoogleDomainUrl(const GURL& url,
                        SubdomainPermission subdomain_permission,
                        PortPermission port_permission) {
-  return url.is_valid() && (url.SchemeIs("http") || url.SchemeIs("https")) &&
+  return url.is_valid() && url.SchemeIsHTTPOrHTTPS() &&
       (url.port().empty() || (port_permission == ALLOW_NON_STANDARD_PORTS)) &&
       google_util::IsGoogleHostname(url.host(), subdomain_permission);
 }
 
 bool IsGoogleHomePageUrl(const GURL& url) {
   // First check to see if this has a Google domain.
   if (!IsGoogleDomainUrl(url, DISALLOW_SUBDOMAIN, DISALLOW_NON_STANDARD_PORTS))
     return false;
 
   // Make sure the path is a known home page path.
@@ skipping 86 matching lines @@
   DCHECK(brand_for_testing == NULL);
   brand_for_testing = brand_.c_str();
 }
 
 BrandForTesting::~BrandForTesting() {
   brand_for_testing = NULL;
 }
 
 
 }  // namespace google_util