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

chrome/browser/chromeos/file_system_provider/operations/create_directory_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 #include <vector>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 22 matching lines @@
 class FileSystemProviderOperationsCreateDirectoryTest : public testing::Test {
  protected:
   FileSystemProviderOperationsCreateDirectoryTest() {}
   virtual ~FileSystemProviderOperationsCreateDirectoryTest() {}
 
   virtual void SetUp() OVERRIDE {
     file_system_info_ =
         ProvidedFileSystemInfo(kExtensionId,
                                kFileSystemId,
                                "" /* file_system_name */,
+                               true /* writable */,
                                base::FilePath() /* mount_path */);
   }
 
   ProvidedFileSystemInfo file_system_info_;
 };
 
 TEST_F(FileSystemProviderOperationsCreateDirectoryTest, Execute) {
   util::LoggingDispatchEventImpl dispatcher(true /* dispatch_reply */);
   util::StatusCallbackLog callback_log;
 
@@ skipping 104 matching lines @@
   create_directory.OnError(kRequestId,
                            scoped_ptr<RequestValue>(new RequestValue()),
                            base::File::FILE_ERROR_TOO_MANY_OPENED);
   ASSERT_EQ(1u, callback_log.size());
   EXPECT_EQ(base::File::FILE_ERROR_TOO_MANY_OPENED, callback_log[0]);
 }
 
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos