fileSystemProvider: First cut at implementing fileSystemProvider API

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

+// Copyright 2013 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 "chrome/browser/extensions/extension_apitest.h"
+
+namespace extensions {
+
+class FileSystemProviderApiTest : public ExtensionApiTest {
+ public:
+  FileSystemProviderApiTest()
+      // Set the channel to "trunk" since this API is restricted to trunk.
+      : current_channel_(chrome::VersionInfo::CHANNEL_UNKNOWN) {
+  }
+
+ private:
+  extensions::ScopedCurrentChannel current_channel_;
+};
+
+IN_PROC_BROWSER_TEST_F(FileSystemProviderApiTest, Mount) {
+  ASSERT_TRUE(RunPlatformAppTest("file_system_provider/mount"))
+      << message_;
+}
+
+}  // namespace extensions