[fsp] Refactor handling operations.

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

Index: chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
diff --git a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
index 52ebdd87612d808a8cc5e2c9bea0f43cd8cd455a..e75968642b9cd4b89e93018459f730e0f81da558 100644
--- a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
+++ b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc
@@ -9,12 +9,14 @@
 #include "base/values.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
 #include "chrome/browser/chromeos/file_system_provider/request_manager.h"
+#include "chrome/browser/chromeos/file_system_provider/request_value.h"
 #include "chrome/browser/chromeos/file_system_provider/service.h"
 #include "chrome/common/extensions/api/file_system_provider.h"
 #include "chrome/common/extensions/api/file_system_provider_internal.h"
 
 using chromeos::file_system_provider::ProvidedFileSystemInterface;
 using chromeos::file_system_provider::RequestManager;
+using chromeos::file_system_provider::RequestValue;
 using chromeos::file_system_provider::Service;
 
 namespace extensions {
@@ -151,7 +153,7 @@ bool FileSystemProviderUnmountFunction::RunImpl() {
 
 bool FileSystemProviderInternalUnmountRequestedSuccessFunction::RunImpl() {
   using api::file_system_provider_internal::UnmountRequestedSuccess::Params;
-  const scoped_ptr<Params> params(Params::Create(*args_));
+  scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
 
   Service* service = Service::Get(GetProfile());
@@ -170,9 +172,11 @@ bool FileSystemProviderInternalUnmountRequestedSuccessFunction::RunImpl() {
   RequestManager* request_manager = file_system->GetRequestManager();
   DCHECK(request_manager);
 
-  if (!request_manager->FulfillRequest(params->request_id,
-                                       scoped_ptr<base::DictionaryValue>(),
-                                       false /* has_more */)) {
+  const int request_id = params->request_id;
+  if (!request_manager->FulfillRequest(
+          request_id,
+          RequestValue::CreateForUnmountSuccess(params.Pass()),
+          false /* has_more */)) {
     // TODO(mtomasz): Pass more detailed errors, rather than just a bool.
     base::ListValue* result = new base::ListValue();
     result->Append(