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 82b75ea439a5275d2190ef547ddcb23717c18c20..45a4ef4f958a38f10b0dc3d650c0549aaca645e1 100644
--- a/blimp/client/core/dummy_blimp_client_context.cc
+++ b/blimp/client/core/dummy_blimp_client_context.cc
@@ -51,5 +51,10 @@ void DummyBlimpClientContext::Connect() {
   NOTREACHED();
 }
 
+void DummyBlimpClientContext::ConnectWithAssignment(
+    const Assignment& assignment) {
+  NOTREACHED();
+}
+
 }  // namespace client
 }  // namespace blimp