Consolidate scheme checks into an easy GURL method

webkit/browser/fileapi/sandbox_file_system_backend_delegate.cc

Index: webkit/browser/fileapi/sandbox_file_system_backend_delegate.cc
diff --git a/webkit/browser/fileapi/sandbox_file_system_backend_delegate.cc b/webkit/browser/fileapi/sandbox_file_system_backend_delegate.cc
index 0a6034e7d9ace1706bd23db6e9ae43019122f2d0..bfd7fd896ed1214b7c3145ddc21a593b2204b6be 100644
--- a/webkit/browser/fileapi/sandbox_file_system_backend_delegate.cc
+++ b/webkit/browser/fileapi/sandbox_file_system_backend_delegate.cc
@@ -181,7 +181,7 @@ bool SandboxFileSystemBackendDelegate::IsAccessValid(
 bool SandboxFileSystemBackendDelegate::IsAllowedScheme(const GURL& url) const {
   // Basically we only accept http or https. We allow file:// URLs
   // only if --allow-file-access-from-files flag is given.
-  if (url.SchemeIs("http") || url.SchemeIs("https"))
+  if (url.SchemeIsHTTPOrHTTPS())
     return true;
   if (url.SchemeIsFileSystem())
     return url.inner_url() && IsAllowedScheme(*url.inner_url());