Decouple FileSystem and WebSQL callbacks from VoidCallback and it non-refcounted

Source/modules/filesystem/DirectoryEntry.cpp

Index: Source/modules/filesystem/DirectoryEntry.cpp
diff --git a/Source/modules/filesystem/DirectoryEntry.cpp b/Source/modules/filesystem/DirectoryEntry.cpp
index 61dfe342a345ca1ce52df9bdff928c9d82da9a65..069cf1792550b2b712853eab4301d3125997e5fe 100644
--- a/Source/modules/filesystem/DirectoryEntry.cpp
+++ b/Source/modules/filesystem/DirectoryEntry.cpp
@@ -32,10 +32,10 @@
 #include "modules/filesystem/DirectoryEntry.h"
 
 #include "core/fileapi/FileError.h"
-#include "core/html/VoidCallback.h"
 #include "modules/filesystem/DirectoryReader.h"
 #include "modules/filesystem/EntryCallback.h"
 #include "modules/filesystem/ErrorCallback.h"
+#include "modules/filesystem/FileSystemVoidCallback.h"
 
 namespace WebCore {
 
@@ -62,7 +62,7 @@ void DirectoryEntry::getDirectory(const String& path, const Dictionary& options,
     m_fileSystem->getDirectory(this, path, flags, successCallback, errorCallback);
 }
 
-void DirectoryEntry::removeRecursively(PassRefPtr<VoidCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback) const
+void DirectoryEntry::removeRecursively(PassRefPtr<FileSystemVoidCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback) const
 {
     m_fileSystem->removeRecursively(this, successCallback, errorCallback);
 }