Implement gnome-keyring for OSCrypt

components/os_crypt/key_storage_linux.h

 // 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 COMPONENTS_OS_CRYPT_KEY_STORAGE_LINUX_H_
 #define COMPONENTS_OS_CRYPT_KEY_STORAGE_LINUX_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/single_thread_task_runner.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
 
 // An API for retrieving OSCrypt's password from the system's password storage
 // service.
 class KeyStorageLinux {
  public:
   KeyStorageLinux() = default;
   virtual ~KeyStorageLinux() = default;
 
   // Force OSCrypt to use a specific linux password store.
   static void SetStore(const std::string& store_type);
@@ skipping 21 matching lines @@
   // The name of the group, if any, containing the key.
   static const char kFolderName[];
   // The name of the entry with the encryption key.
   static const char kKey[];
 
  private:
   DISALLOW_COPY_AND_ASSIGN(KeyStorageLinux);
 };
 
 #endif  // COMPONENTS_OS_CRYPT_KEY_STORAGE_LINUX_H_