Revert 282890 "[fsp] Add an option for mounting in R/W mode."

trunk/src/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc

Index: trunk/src/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
===================================================================
--- trunk/src/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc	(revision 282899)
+++ trunk/src/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc	(working copy)
@@ -52,8 +52,7 @@
   // TODO(mtomasz): Pass more detailed errors, rather than just a bool.
   if (!service->MountFileSystem(extension_id(),
                                 params->options.file_system_id,
-                                params->options.display_name,
-                                params->options.writable)) {
+                                params->options.display_name)) {
     base::ListValue* result = new base::ListValue();
     result->Append(CreateError(kSecurityErrorName, kMountFailedErrorMessage));
     SetResult(result);