Improve inheritance support in the CEF API (issue #1623).

- Support single parent inheritance in CEF API classes.
- Support non-virtual inheritance in CEF API classes.
- Support translation of CEF API sub-directories.
- Add test sub-directories for testing-only functionality that will be
  available to unit tests but not exposed via the binary distribution.
- Add unit tests for the translator tool.
- Fix parsing of template parameter types that include commas.

libcef_dll/cpptoc/end_tracing_callback_cpptoc.cc

@@ -13,6 +13,8 @@
 #include "libcef_dll/cpptoc/end_tracing_callback_cpptoc.h"
 
 
+namespace {
+
 // MEMBER FUNCTIONS - Body may be edited by hand.
 
 void CEF_CALLBACK end_tracing_callback_on_end_tracing_complete(
@@ -33,19 +35,28 @@ void CEF_CALLBACK end_tracing_callback_on_end_tracing_complete(
       CefString(tracing_file));
 }
 
+}  // namespace
+
 
 // CONSTRUCTOR - Do not edit by hand.
 
-CefEndTracingCallbackCppToC::CefEndTracingCallbackCppToC(
-    CefEndTracingCallback* cls)
-    : CefCppToC<CefEndTracingCallbackCppToC, CefEndTracingCallback,
-        cef_end_tracing_callback_t>(cls) {
-  struct_.struct_.on_end_tracing_complete =
+CefEndTracingCallbackCppToC::CefEndTracingCallbackCppToC() {
+  GetStruct()->on_end_tracing_complete =
       end_tracing_callback_on_end_tracing_complete;
 }
 
+template<> CefRefPtr<CefEndTracingCallback> CefCppToC<CefEndTracingCallbackCppToC,
+    CefEndTracingCallback, cef_end_tracing_callback_t>::UnwrapDerived(
+    CefWrapperType type, cef_end_tracing_callback_t* s) {
+  NOTREACHED() << "Unexpected class type: " << type;
+  return NULL;
+}
+
 #ifndef NDEBUG
 template<> base::AtomicRefCount CefCppToC<CefEndTracingCallbackCppToC,
     CefEndTracingCallback, cef_end_tracing_callback_t>::DebugObjCt = 0;
 #endif
 
+template<> CefWrapperType CefCppToC<CefEndTracingCallbackCppToC,
+    CefEndTracingCallback, cef_end_tracing_callback_t>::kWrapperType =
+    WT_END_TRACING_CALLBACK;