[fsp] Refactor handling operations.

chrome/browser/chromeos/file_system_provider/fake_provided_file_system.cc

Index: chrome/browser/chromeos/file_system_provider/fake_provided_file_system.cc
diff --git a/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.cc b/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.cc
index b80c3dc51c39664b98b947616624420a8dba09c2..9db6c07117a682f7f02cf18baa18b489585c662e 100644
--- a/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.cc
+++ b/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.cc
@@ -13,15 +13,15 @@ namespace file_system_provider {
 
 FakeProvidedFileSystem::FakeProvidedFileSystem(
     const ProvidedFileSystemInfo& file_system_info)
-    : file_system_info_(file_system_info) {}
+    : file_system_info_(file_system_info), weak_ptr_factory_(this) {
+}
 
 FakeProvidedFileSystem::~FakeProvidedFileSystem() {}
 
-bool FakeProvidedFileSystem::RequestUnmount(
+void FakeProvidedFileSystem::RequestUnmount(
     const fileapi::AsyncFileUtil::StatusCallback& callback) {
   base::MessageLoopProxy::current()->PostTask(
       FROM_HERE, base::Bind(callback, base::File::FILE_OK));
-  return true;
 }
 
 const ProvidedFileSystemInfo& FakeProvidedFileSystem::GetFileSystemInfo()
@@ -34,6 +34,11 @@ RequestManager* FakeProvidedFileSystem::GetRequestManager() {
   return NULL;
 }
 
+base::WeakPtr<ProvidedFileSystemInterface>
+FakeProvidedFileSystem::GetWeakPtr() {
+  return weak_ptr_factory_.GetWeakPtr();
+}
+
 ProvidedFileSystemInterface* FakeProvidedFileSystem::Create(
     extensions::EventRouter* event_router,
     const ProvidedFileSystemInfo& file_system_info) {