[fsp] Add support for creating directories.

chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h

Index: chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h
diff --git a/chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h b/chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h
index 3f2a2249750f2dae0bf2ccd705a402417657abf7..9858ee2ee802fce15f8dd2b5641c1ee4b172f7d1 100644
--- a/chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h
+++ b/chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h
@@ -101,6 +101,15 @@ class ProvidedFileSystemInterface {
                         int length,
                         const ReadChunkReceivedCallback& callback) = 0;
 
+  // Requests creating a directory. If |recursive| is passed, then all non
+  // existing directories on the path will be created. If |exclusive| is true,
+  // then creating the directory will fail, if it already exists.
+  virtual void CreateDirectory(
+      const base::FilePath& directory_path,
+      bool exclusive,
+      bool recursive,
+      const fileapi::AsyncFileUtil::StatusCallback& callback) = 0;
+
   // Returns a provided file system info for this file system.
   virtual const ProvidedFileSystemInfo& GetFileSystemInfo() const = 0;