Issue #188:

- Add a CefV8Context object and CefV8Value::ExecuteFunctionWithContext method to support asynchronous V8 ExecuteFunction callbacks.
- Add a CefFrame::GetBrowser() method.
- Ensure that V8 types are only referenced on the UI thread.
- Accept a empty |object| parameter to CefV8Value::ExecuteFunction.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@188 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tests/unittests/test_handler.h

@@ -9,6 +9,17 @@
 #include "base/synchronization/waitable_event.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+class TrackCallback
+{
+public:
+  TrackCallback(): gotit_(false) {}
+  void yes() { gotit_ = true; }
+  bool isSet() { return gotit_; }
+  operator bool() const { return gotit_; }
+protected:
+  bool gotit_;
+};
+
 // Base implementation of CefHandler for unit tests.
 class TestHandler : public CefThreadSafeBase<CefHandler>
 {