Improvements to scheme handling (issue #246).

- Break CefRegisterScheme into separate CefRegisterCustomScheme and CefRegisterSchemeHandlerFactory functions.
- Allow registration of handlers for built-in schemes.
- Supply scheme and request information to CefSchemeHandlerFactory::Create.
- Add CrossOriginWhitelist functions for bypassing the same-origin policy with both built-in and custom standard schemes.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@247 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tests/unittests/test_handler.h

@@ -123,6 +123,9 @@ public:
 
     // Wait for the test to complete
     completion_event_.Wait();
+
+    // Reset the event so the same test can be executed again.
+    completion_event_.Reset();
   }
 
 protected: