Speculative fix for SpdySettingsStorage crasher.

net/spdy/spdy_session.cc

Index: net/spdy/spdy_session.cc
diff --git a/net/spdy/spdy_session.cc b/net/spdy/spdy_session.cc
index b00e9388371db460891ad45e69b603656f491bd3..a360c527a76955d3c53f7eba2e788f5b589c04b0 100644
--- a/net/spdy/spdy_session.cc
+++ b/net/spdy/spdy_session.cc
@@ -362,7 +362,11 @@ void SpdySession::ProcessPendingCreateStreams() {
                                      pending_create.priority,
                                      pending_create.spdy_stream,
                                      *pending_create.stream_net_log);
-        pending_create.callback->Run(error);
+        MessageLoop::current()->PostTask(
+            FROM_HERE,
+            method_factory_.NewRunnableMethod(
+                &SpdySession::InvokeUserStreamCreationCallback,
+                pending_create.callback, error));
         break;
       }
     }
@@ -1298,4 +1302,9 @@ void SpdySession::RecordHistograms() {
   }
 }
 
+void SpdySession::InvokeUserStreamCreationCallback(
+    CompletionCallback* callback, int rv) {
+  callback->Run(rv);
+}
+
 }  // namespace net