Eliminate mojo::Shell client lib class

mojo/services/test_service/test_service_impl.h

Index: mojo/services/test_service/test_service_impl.h
diff --git a/mojo/services/test_service/test_service_impl.h b/mojo/services/test_service/test_service_impl.h
index f96da3cfdad4ce2da4d50ef3e41486bd6d1c5e2a..60ba7954f903cd9fa1eb6dbe16b0d5e165b78210 100644
--- a/mojo/services/test_service/test_service_impl.h
+++ b/mojo/services/test_service/test_service_impl.h
@@ -13,7 +13,7 @@
 #include "mojo/services/test_service/test_service.mojom.h"
 
 namespace mojo {
-class Shell;
+class Connector;
 namespace test {
 
 class TrackedService;
@@ -21,7 +21,7 @@ class TestServiceApplication;
 
 class TestServiceImpl : public TestService {
  public:
-  TestServiceImpl(Shell* shell,
+  TestServiceImpl(Connector* connector,
                   TestServiceApplication* application,
                   InterfaceRequest<TestService> request);
   ~TestServiceImpl() override;
@@ -35,7 +35,7 @@ class TestServiceImpl : public TestService {
 
  private:
   TestServiceApplication* const application_;
-  Shell* const shell_;
+  Connector* const connector_;
   TestTimeServicePtr time_service_;
   scoped_ptr<TrackedService> tracking_;
   StrongBinding<TestService> binding_;