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/ctocpp/delete_cookies_callback_ctocpp.cc

@@ -16,19 +16,35 @@
 // VIRTUAL METHODS - Body may be edited by hand.
 
 void CefDeleteCookiesCallbackCToCpp::OnComplete(int num_deleted) {
-  if (CEF_MEMBER_MISSING(struct_, on_complete))
+  cef_delete_cookies_callback_t* _struct = GetStruct();
+  if (CEF_MEMBER_MISSING(_struct, on_complete))
     return;
 
   // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
 
   // Execute
-  struct_->on_complete(struct_,
+  _struct->on_complete(_struct,
       num_deleted);
 }
 
 
+// CONSTRUCTOR - Do not edit by hand.
+
+CefDeleteCookiesCallbackCToCpp::CefDeleteCookiesCallbackCToCpp() {
+}
+
+template<> cef_delete_cookies_callback_t* CefCToCpp<CefDeleteCookiesCallbackCToCpp,
+    CefDeleteCookiesCallback, cef_delete_cookies_callback_t>::UnwrapDerived(
+    CefWrapperType type, CefDeleteCookiesCallback* c) {
+  NOTREACHED() << "Unexpected class type: " << type;
+  return NULL;
+}
+
 #ifndef NDEBUG
 template<> base::AtomicRefCount CefCToCpp<CefDeleteCookiesCallbackCToCpp,
     CefDeleteCookiesCallback, cef_delete_cookies_callback_t>::DebugObjCt = 0;
 #endif
 
+template<> CefWrapperType CefCToCpp<CefDeleteCookiesCallbackCToCpp,
+    CefDeleteCookiesCallback, cef_delete_cookies_callback_t>::kWrapperType =
+    WT_DELETE_COOKIES_CALLBACK;