Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/filesystem/DirectoryEntrySync.h

Index: Source/modules/filesystem/DirectoryEntrySync.h
diff --git a/Source/modules/filesystem/DirectoryEntrySync.h b/Source/modules/filesystem/DirectoryEntrySync.h
index 7192fdea10bf9da1709ed30d0b0d6beeca2e14ee..41f6ec53e14c118f9f0c2c0d6dcc0e99949ce680 100644
--- a/Source/modules/filesystem/DirectoryEntrySync.h
+++ b/Source/modules/filesystem/DirectoryEntrySync.h
@@ -43,13 +43,13 @@ class DirectoryReaderSync;
 class ExceptionState;
 class FileEntrySync;
 
-class DirectoryEntrySync : public EntrySync {
+class DirectoryEntrySync FINAL : public EntrySync {
 public:
     static PassRefPtr<DirectoryEntrySync> create(PassRefPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
     {
         return adoptRef(new DirectoryEntrySync(fileSystem, fullPath));
     }
-    virtual bool isDirectory() const { return true; }
+    virtual bool isDirectory() const OVERRIDE { return true; }
 
     PassRefPtr<DirectoryReaderSync> createReader();
     PassRefPtr<FileEntrySync> getFile(const String& path, const Dictionary&, ExceptionState&);