Wire up the deleteFileSystem operation.

webkit/fileapi/sandbox_mount_point_provider.h

Index: webkit/fileapi/sandbox_mount_point_provider.h
diff --git a/webkit/fileapi/sandbox_mount_point_provider.h b/webkit/fileapi/sandbox_mount_point_provider.h
index 5921bb534b54d4dcf04b11a829d6860e09f06bd4..d1d420418bb9832d33500ddd0519e4e445bf71b9 100644
--- a/webkit/fileapi/sandbox_mount_point_provider.h
+++ b/webkit/fileapi/sandbox_mount_point_provider.h
@@ -41,8 +41,8 @@ class FILEAPI_EXPORT SandboxMountPointProvider
     : public FileSystemMountPointProvider,
       public FileSystemQuotaUtil {
  public:
-  typedef FileSystemMountPointProvider::ValidateFileSystemCallback
-      ValidateFileSystemCallback;
+  using FileSystemMountPointProvider::ValidateFileSystemCallback;
+  using FileSystemMountPointProvider::DeleteFileSystemCallback;
 
   // Origin enumerator interface.
   // An instance of this interface is assumed to be called on the file thread.
@@ -104,6 +104,11 @@ class FILEAPI_EXPORT SandboxMountPointProvider
       int64 offset,
       FileSystemContext* context) const OVERRIDE;
   virtual FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE;
+  virtual void DeleteFileSystem(
+      const GURL& origin_url,
+      FileSystemType type,
+      FileSystemContext* context,
+      const DeleteFileSystemCallback& callback) const OVERRIDE;
 
   FilePath old_base_path() const;
   FilePath new_base_path() const;