Significant API changes for issue #218:

- Replace CefHandler with a new CefClient interface and separate handler interfaces.
- Add support for virtual inheritance to allow multiple CefBase parented interfaces to be implemented in the same class.
- Replace CefThreadSafeBase with IMPLEMENT_* macros to support virtual inheritance and to only provide locking implementations when needed.
- Move the CefBrowserSettings parameter from CefInitialize to CreateBrowser.
- Add a new cef_build.h header that provides platform-specific and OS_* defines.
- Introduce the use of OVERRIDE to generate compiler errors on Windows if a child virtual method declaration doesn't match the parent declaration.
- Use NDEBUG instead of _DEBUG because _DEBUG is not defined on Mac. (issue #240).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@235 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/xml_reader_impl.h

@@ -11,7 +11,7 @@
 #include <sstream>
 
 // Implementation of CefXmlReader
-class CefXmlReaderImpl : public CefThreadSafeBase<CefXmlReader>
+class CefXmlReaderImpl : public CefXmlReader
 {
 public:
   CefXmlReaderImpl();
@@ -65,6 +65,8 @@ protected:
   CefRefPtr<CefStreamReader> stream_;
   xmlTextReaderPtr reader_;
   std::stringstream error_buf_;
+
+  IMPLEMENT_REFCOUNTING(CefXMLReaderImpl);
 };
 
 #endif // _XML_READER_IMPL_H