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

Source/core/inspector/InspectorFileSystemAgent.cpp

Index: Source/core/inspector/InspectorFileSystemAgent.cpp
diff --git a/Source/core/inspector/InspectorFileSystemAgent.cpp b/Source/core/inspector/InspectorFileSystemAgent.cpp
index a5f971976948076bd5f3f2f66a08f4921284c980..eae5f230719e38bb776d54a4f11269331f3d26e6 100644
--- a/Source/core/inspector/InspectorFileSystemAgent.cpp
+++ b/Source/core/inspector/InspectorFileSystemAgent.cpp
@@ -39,7 +39,6 @@
 #include "core/fileapi/File.h"
 #include "core/fileapi/FileError.h"
 #include "core/fileapi/FileReader.h"
-#include "core/html/VoidCallback.h"
 #include "core/inspector/InspectorPageAgent.h"
 #include "core/inspector/InspectorState.h"
 #include "core/frame/Frame.h"
@@ -53,6 +52,7 @@
 #include "modules/filesystem/FileCallback.h"
 #include "modules/filesystem/FileEntry.h"
 #include "modules/filesystem/FileSystemCallbacks.h"
+#include "modules/filesystem/FileSystemVoidCallback.h"
 #include "modules/filesystem/LocalFileSystem.h"
 #include "modules/filesystem/Metadata.h"
 #include "modules/filesystem/MetadataCallback.h"
@@ -496,7 +496,7 @@ void FileContentRequest::didRead()
     reportResult(static_cast<FileError::ErrorCode>(0), &result, &m_charset);
 }
 
-class DeleteEntryRequest : public VoidCallback {
+class DeleteEntryRequest : public FileSystemVoidCallback {
 public:
     static PassRefPtr<DeleteEntryRequest> create(PassRefPtr<DeleteEntryCallback> requestCallback, const KURL& url)
     {