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_dll/cpptoc/download_handler_cpptoc.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
+// Copyright (c) 2011 The Chromium Embedded Framework Authors. All rights
 // reserved. Use of this source code is governed by a BSD-style license that
 // can be found in the LICENSE file.
 //
@@ -46,7 +46,7 @@ CefDownloadHandlerCppToC::CefDownloadHandlerCppToC(CefDownloadHandler* cls)
   struct_.struct_.complete = download_handler_complete;
 }
 
-#ifdef _DEBUG
+#ifndef NDEBUG
 template<> long CefCppToC<CefDownloadHandlerCppToC, CefDownloadHandler,
     cef_download_handler_t>::DebugObjCt = 0;
 #endif