API delegate for non-native file systems

chrome/browser/extensions/api/file_handlers/non_native_file_system_delegate_chromeos.h

Index: chrome/browser/extensions/api/file_handlers/non_native_file_system_delegate_chromeos.h
diff --git a/chrome/browser/extensions/api/file_handlers/non_native_file_system_delegate_chromeos.h b/chrome/browser/extensions/api/file_handlers/non_native_file_system_delegate_chromeos.h
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index 0000000000000000000000000000000000000000..c1bb44307a667e2c7d8273398b452ed8e0ed2124
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+++ b/chrome/browser/extensions/api/file_handlers/non_native_file_system_delegate_chromeos.h
@@ -0,0 +1,46 @@
+// Copyright 2017 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_BROWSER_EXTENSIONS_API_FILE_HANDLERS_NON_NATIVE_FILE_SYSTEM_DELEGATE_CHROMEOS_H_
+#define CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_NON_NATIVE_FILE_SYSTEM_DELEGATE_CHROMEOS_H_
+
+#include "base/callback.h"
+#include "base/files/file_path.h"
+#include "extensions/browser/api/file_handlers/non_native_file_system_delegate.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace extensions {
+
+class NonNativeFileSystemDelegateChromeOS
+    : public extensions::NonNativeFileSystemDelegate {
+ public:
+  NonNativeFileSystemDelegateChromeOS();
+  ~NonNativeFileSystemDelegateChromeOS() override;
+
+  // extensions::NonNativeFileSystemDelegate:
+  bool IsUnderNonNativeLocalPath(content::BrowserContext* context,
+                                 const base::FilePath& path) override;
+  void GetNonNativeLocalPathMimeType(
+      content::BrowserContext* context,
+      const base::FilePath& path,
+      const base::Callback<void(bool, const std::string&)>& callback) override;
+  void IsNonNativeLocalPathDirectory(
+      content::BrowserContext* context,
+      const base::FilePath& path,
+      const base::Callback<void(bool)>& callback) override;
+  void PrepareNonNativeLocalFileForWritableApp(
+      content::BrowserContext* context,
+      const base::FilePath& path,
+      const base::Callback<void(bool)>& callback) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NonNativeFileSystemDelegateChromeOS);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_NON_NATIVE_FILE_SYSTEM_DELEGATE_CHROMEOS_H_