ChildProcessSecurityPolicy: Port FileAPIMessageFilter to use new checks

content/browser/loader/resource_dispatcher_host_impl.cc

Index: content/browser/loader/resource_dispatcher_host_impl.cc
diff --git a/content/browser/loader/resource_dispatcher_host_impl.cc b/content/browser/loader/resource_dispatcher_host_impl.cc
index 2a4ad9ac684eaf013e8717688027dc894c13aa1b..dcd2d12bc3b04e8c1a5d0fb3d4e1083816ec3181 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.cc
+++ b/content/browser/loader/resource_dispatcher_host_impl.cc
@@ -217,8 +217,7 @@ bool ShouldServiceRequest(int process_type,
       }
       if (iter->type() == ResourceRequestBody::Element::TYPE_FILE_FILESYSTEM) {
         fileapi::FileSystemURL url = file_system_context->CrackURL(iter->url());
-        if (!policy->HasPermissionsForFileSystemFile(
-                child_id, url, fileapi::kReadFilePermissions)) {
+        if (!policy->CanReadFileSystemFile(child_id, url)) {
           NOTREACHED() << "Denied unauthorized upload of "
                        << iter->url().spec();
           return false;