- Add CefHandler::HandleTooltip and default tooltip implementation (issue #61).

- Add Common Controls to cefclient manifest because it's required for the default tooltip implementation.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@96 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tests/unittests/test_handler.h

@@ -203,6 +203,12 @@ public:
     return RV_CONTINUE;
   }
 
+  virtual RetVal HandleTooltip(CefRefPtr<CefBrowser> browser,
+                               std::wstring& text)
+  {
+    return RV_CONTINUE;
+  }
+
   virtual RetVal HandleConsoleMessage(CefRefPtr<CefBrowser> browser,
                                       const std::wstring& message,
                                       const std::wstring& source, int line)