fileSystemProvider: First cut at implementing fileSystemProvider API

chrome/renderer/extensions/file_system_provider_natives.h

+// 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.
+
+#ifndef CHROME_RENDERER_EXTENSIONS_FILE_SYSTEM_PROVIDER_NATIVES_H_
+#define CHROME_RENDERER_EXTENSIONS_FILE_SYSTEM_PROVIDER_NATIVES_H_
+
+#include "chrome/renderer/extensions/object_backed_native_handler.h"
+#include "v8/include/v8.h"
+
+namespace extensions {
+
+// Implements custom bindings for fileSystemProvider API.
+class fileSystemProviderNatives : public ObjectBackedNativeHandler {
+ public:
+  explicit fileSystemProviderNatives(ChromeV8Context* context);
+
+ private:
+  // Constructs a DOMError object to be used in JavaScript.
+  void GetDOMError(const v8::FunctionCallbackInfo<v8::Value>& args);
+
+  DISALLOW_COPY_AND_ASSIGN(fileSystemProviderNatives);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_RENDERER_EXTENSIONS_FILE_SYSTEM_PROVIDER_NATIVES_H_