[NaCl SDK] Expose Google Drive to nacl_io.

native_client_sdk/src/tests/nacl_io_test/fake_ppapi/fake_filesystem.h

Index: native_client_sdk/src/tests/nacl_io_test/fake_ppapi/fake_filesystem.h
diff --git a/native_client_sdk/src/tests/nacl_io_test/fake_ppapi/fake_filesystem.h b/native_client_sdk/src/tests/nacl_io_test/fake_ppapi/fake_filesystem.h
new file mode 100644
index 0000000000000000000000000000000000000000..15c24892f9fd5d070a2dd0e0ed22184be616312e
--- /dev/null
+++ b/native_client_sdk/src/tests/nacl_io_test/fake_ppapi/fake_filesystem.h
@@ -0,0 +1,53 @@
+// Copyright 2016 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 LIBRARIES_NACL_IO_TEST_FAKE_FILESYSTEM_H_
+#define LIBRARIES_NACL_IO_TEST_FAKE_FILESYSTEM_H_
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "ppapi/c/pp_file_info.h"
+
+#include "fake_ppapi/fake_node.h"
+
+class FakeFilesystem {
+ public:
+  typedef std::string Path;
+
+  struct DirectoryEntry {
+    Path path;
+    const FakeNode* node;
+  };
+  typedef std::vector<DirectoryEntry> DirectoryEntries;
+
+  FakeFilesystem();
+  explicit FakeFilesystem(PP_FileSystemType type);
+  FakeFilesystem(const FakeFilesystem& filesystem, PP_FileSystemType type);
+
+  void Clear();
+  bool AddEmptyFile(const Path& path, FakeNode** out_node);
+  bool AddFile(const Path& path,
+               const std::string& contents,
+               FakeNode** out_node);
+  bool AddFile(const Path& path,
+               const std::vector<uint8_t>& contents,
+               FakeNode** out_node);
+  bool AddDirectory(const Path& path, FakeNode** out_node);
+  bool RemoveNode(const Path& path);
+
+  FakeNode* GetNode(const Path& path);
+  bool GetDirectoryEntries(const Path& path,
+                           DirectoryEntries* out_dir_entries) const;
+  PP_FileSystemType filesystem_type() const { return filesystem_type_; }
+  static Path GetParentPath(const Path& path);
+
+ private:
+  typedef std::map<Path, FakeNode> NodeMap;
+  NodeMap node_map_;
+  PP_FileSystemType filesystem_type_;
+};
+
+#endif  // LIBRARIES_NACL_IO_TEST_FAKE_FILESYSTEM_H_