FileAPI: Add Initialize() function to FileSystemBackend

webkit/browser/fileapi/file_system_backend.h

Index: webkit/browser/fileapi/file_system_backend.h
diff --git a/webkit/browser/fileapi/file_system_backend.h b/webkit/browser/fileapi/file_system_backend.h
index 37cb6b066b894b7a39930b4117f0e6d1335c3d7e..a9139cd533a39a0ff7918994dc1ce98a69b686ff 100644
--- a/webkit/browser/fileapi/file_system_backend.h
+++ b/webkit/browser/fileapi/file_system_backend.h
@@ -53,6 +53,9 @@ class WEBKIT_STORAGE_BROWSER_EXPORT FileSystemBackend {
   // One mount point provider may be able to handle multiple filesystem types.
   virtual bool CanHandleType(FileSystemType type) const = 0;
 
+  // Initializes the filesystem.

[kinuko, 2013/07/23 07:33:49]

Can you elaborate more?  E.g.

This method if called right after the backend is registered in the
FileSystemContext and before any other methods are called.   Each backend can
implement additional initialization which depends on FileSystemContext.

[nhiroki, 2013/07/23 08:11:23]

Done.

+  virtual void Initialize(const FileSystemContext* context) = 0;
+
   // Initializes the filesystem for the given |origin_url| and |type|.
   // This verifies if it is allowed to request (or create) the filesystem
   // and if it can access (or create) the root directory of the mount point.