Marks session as connected upon StartSession success

Source/modules/presentation/PresentationSessionClientCallbacks.cpp

Index: Source/modules/presentation/PresentationSessionClientCallbacks.cpp
diff --git a/Source/modules/presentation/PresentationSessionClientCallbacks.cpp b/Source/modules/presentation/PresentationSessionClientCallbacks.cpp
index 10033511af7fd644826875b4e18c519f6635feb6..18e55120e03ba6829bb90204af3c0787316c274b 100644
--- a/Source/modules/presentation/PresentationSessionClientCallbacks.cpp
+++ b/Source/modules/presentation/PresentationSessionClientCallbacks.cpp
@@ -39,7 +39,9 @@ void PresentationSessionClientCallbacks::onSuccess(WebPresentationSessionClient*
         return;
     }
 
-    m_resolver->resolve(PresentationSession::take(client, m_presentation));
+    PresentationSession* session = PresentationSession::take(client, m_presentation);
+    session->didChangeState(WebPresentationSessionState::Connected);

[whywhat, 2015/06/25 17:33:45]

Seems wasteful to dispatch an event to just created and not yet returned to the
page session.
Maybe it's better to pass the initial state with WebPresentationSessionClient?
Or you could just set the session's state to Connected in the constructor.

[haibinlu, 2015/06/25 18:45:36]

Make sense. Pass in the initial state.

+    m_resolver->resolve(session);
 }
 
 void PresentationSessionClientCallbacks::onError(WebPresentationError* error)