Move fileapi into its own component

webkit/fileapi/file_system_context.h

 // Copyright (c) 2012 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 WEBKIT_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 
 #include <map>
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/platform_file.h"
 #include "base/sequenced_task_runner_helpers.h"
+#include "webkit/fileapi/fileapi_export.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/quota/special_storage_policy.h"
 
 class FilePath;
 class GURL;
 
 namespace base {
 class SequencedTaskRunner;
 class SingleThreadTaskRunner;
 }
@@ skipping 15 matching lines @@
 class FileSystemOptions;
 class FileSystemPathManager;
 class FileSystemQuotaUtil;
 class IsolatedMountPointProvider;
 class SandboxMountPointProvider;
 
 struct DefaultContextDeleter;
 
 // This class keeps and provides a file system context for FileSystem API.
 // An instance of this class is created and owned by profile.
-class FileSystemContext
+class FILEAPI_EXPORT FileSystemContext
     : public base::RefCountedThreadSafe<FileSystemContext,
                                         DefaultContextDeleter> {
  public:
   // |file_task_runner| is used for all file operations and file related
   // meta operations.
   // The code assumes that file_task_runner->RunsTasksOnCurrentThread() returns
   // false if the current task is not running on the thread that allows
   // blocking file operations (like SequencedWorkerPool implementation does).
   FileSystemContext(
       base::SequencedTaskRunner* file_task_runner,
@@ skipping 75 matching lines @@
       int64 offset);
 
   // Register a filesystem provider. The ownership of |provider| is
   // transferred to this instance.
   void RegisterMountPointProvider(FileSystemType type,
                                   FileSystemMountPointProvider* provider);
 
  private:
   friend struct DefaultContextDeleter;
   friend class base::DeleteHelper<FileSystemContext>;
+  friend class base::RefCountedThreadSafe<FileSystemContext,
+                                          DefaultContextDeleter>;
   ~FileSystemContext();
 
   void DeleteOnCorrectThread() const;
 
   scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 
   scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
 
   // Regular mount point providers.
   scoped_ptr<SandboxMountPointProvider> sandbox_provider_;
   scoped_ptr<IsolatedMountPointProvider> isolated_provider_;
   scoped_ptr<ExternalFileSystemMountPointProvider> external_provider_;
 
   // Registered mount point providers.
   std::map<FileSystemType, FileSystemMountPointProvider*> provider_map_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(FileSystemContext);
 };
 
 struct DefaultContextDeleter {
   static void Destruct(const FileSystemContext* context) {
     context->DeleteOnCorrectThread();
   }
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_CONTEXT_H_