[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_system_provider/service.h

 // Copyright 2014 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_CHROMEOS_FILE_SYSTEM_PROVIDER_SERVICE_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_SERVICE_H_
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/file_system_provider/observer.h"
+#include "chrome/browser/chromeos/file_system_provider/provided_file_system_defs.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_observer.h"
 #include "chrome/browser/chromeos/file_system_provider/watcher.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/file_system_provider.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/browser_context.h"
 #include "extensions/browser/extension_registry_observer.h"
 #include "extensions/common/extension.h"
 #include "storage/browser/fileapi/watcher_manager.h"
@@ skipping 56 matching lines @@
 
   // Sets a custom Registry implementation. Used by unit tests.
   void SetRegistryForTesting(scoped_ptr<RegistryInterface> registry);
 
   // Mounts a file system provided by an extension with the |extension_id|. If
   // |writable| is set to true, then the file system is mounted in a R/W mode.
   // Otherwise, only read-only operations are supported. If change notification
   // tags are supported, then |supports_notify_tag| must be true. Note, that
   // it is required in order to enable the internal cache. For success, returns
   // base::File::FILE_OK, otherwise an error code.
-  base::File::Error MountFileSystem(const std::string& extension_id,
-                                    const MountOptions& options);
+  base::File::Error MountFileSystem(
+      const std::string& source_id,
+      const MountOptions& options,
+      Source_Type source_type = Source_Type::extension);
 
   // Unmounts a file system with the specified |file_system_id| for the
   // |extension_id|. For success returns base::File::FILE_OK, otherwise an error
   // code.
-  base::File::Error UnmountFileSystem(const std::string& extension_id,
+  base::File::Error UnmountFileSystem(const std::string& source_id,
                                       const std::string& file_system_id,
                                       UnmountReason reason);
 
   // Requests unmounting of the file system. Returns false if the request could
   // not been created, true otherwise.
   bool RequestUnmount(const std::string& extension_id,
                       const std::string& file_system_id);
 
   // Requests mounting a new file system by the providing extension with
   // |extension_id|. Returns false if the request could not been created, true
   // otherwise.
   bool RequestMount(const std::string& extension_id);
 
   // Returns a list of information of all currently provided file systems. All
   // items are copied.
   std::vector<ProvidedFileSystemInfo> GetProvidedFileSystemInfoList();
 
   // Returns a provided file system with |file_system_id|, handled by
   // the extension with |extension_id|. If not found, then returns NULL.
   ProvidedFileSystemInterface* GetProvidedFileSystem(
-      const std::string& extension_id,
+      const std::string& source_id,
       const std::string& file_system_id);
 
   // Returns a provided file system attached to the the passed
   // |mount_point_name|. If not found, then returns NULL.
   ProvidedFileSystemInterface* GetProvidedFileSystem(
       const std::string& mount_point_name);
 
   // Returns a list of information of all currently installed providing
   // extensions.
   std::vector<ProvidingExtensionInfo> GetProvidingExtensionInfoList() const;
@@ skipping 30 matching lines @@
   // Key is a pair of an extension id and file system id, which makes it
   // unique among the entire service instance.
   typedef std::pair<std::string, std::string> FileSystemKey;
 
   typedef std::map<FileSystemKey, ProvidedFileSystemInterface*>
       ProvidedFileSystemMap;
   typedef std::map<std::string, FileSystemKey> MountPointNameToKeyMap;
 
   // Mounts the file system in the specified context. See MountFileSystem() for
   // more information.
-  base::File::Error MountFileSystemInternal(const std::string& extension_id,
-                                            const MountOptions& options,
-                                            MountContext context);
+  base::File::Error MountFileSystemInternal(
+      const std::string& source_id,
+      const MountOptions& options,
+      MountContext context,
+      Source_Type source_type = Source_Type::extension);
 
   // Called when the providing extension accepts or refuses a unmount request.
   // If |error| is equal to FILE_OK, then the request is accepted.
   void OnRequestUnmountStatus(const ProvidedFileSystemInfo& file_system_info,
                               base::File::Error error);
 
   // Remembers the file system in preferences, in order to remount after a
   // reboot.
   void RememberFileSystem(const ProvidedFileSystemInfo& file_system_info,
                           const Watchers& watchers);
@@ skipping 17 matching lines @@
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<Service> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(Service);
 };
 
 }  // namespace file_system_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_SERVICE_H_