Use asynchronized api for file system request. [blink] (3/4)

public/web/WebPermissionClient.h

Index: public/web/WebPermissionClient.h
diff --git a/public/web/WebPermissionClient.h b/public/web/WebPermissionClient.h
index 5612a9de82734e3bdbe3ae16078866f8d0bf78f6..9dc3ffbd89f6601a6e3ebc19c4e5572eac0b6e34 100644
--- a/public/web/WebPermissionClient.h
+++ b/public/web/WebPermissionClient.h
@@ -45,9 +45,6 @@ public:
     virtual bool allowDatabase(const WebString& name, const WebString& displayName, unsigned long estimatedSize) { return true; }
 
     // Controls whether access to File System is allowed for this frame.
-    virtual bool allowFileSystem() { return true; }
-
-    // Controls whether access to File System is allowed for this frame.
     virtual bool requestFileSystemAccessSync() { return true; }
 
     virtual void requestFileSystemAccessAsync(const WebPermissionCallbacks& callbacks) { }