Add a full Blimp integration test.

blimp/client/core/dummy_blimp_client_context.cc

Index: blimp/client/core/dummy_blimp_client_context.cc
diff --git a/blimp/client/core/dummy_blimp_client_context.cc b/blimp/client/core/dummy_blimp_client_context.cc
index 5ebc115750153102694b621086a8f75005db8528..2e81df03e91652eb7e8288d97d0069b954615d99 100644
--- a/blimp/client/core/dummy_blimp_client_context.cc
+++ b/blimp/client/core/dummy_blimp_client_context.cc
@@ -48,5 +48,10 @@ void DummyBlimpClientContext::Connect() {
   NOTREACHED();
 }
 
+void DummyBlimpClientContext::ConnectWithAssignment(
+    const Assignment& assignment) {
+  NOTREACHED();
+}
+
 }  // namespace client
 }  // namespace blimp