Rename sky::TestObserver to sky::TestHarness

sky/viewer/internals.h

Index: sky/viewer/internals.h
diff --git a/sky/viewer/internals.h b/sky/viewer/internals.h
index 791bd091bd37b848b958ebbbc02e8a5e7f65b4ad..6b86453acd36db56f00f216a64e009963363d5f3 100644
--- a/sky/viewer/internals.h
+++ b/sky/viewer/internals.h
@@ -9,7 +9,7 @@
 #include "gin/handle.h"
 #include "gin/object_template_builder.h"
 #include "gin/wrappable.h"
-#include "sky/viewer/test_observer.mojom.h"
+#include "sky/viewer/services/test_harness.mojom.h"
 
 namespace sky {
 class DocumentView;
@@ -36,7 +36,7 @@ class Internals : public gin::Wrappable<Internals> {
       const std::string& application_url, const std::string& interface_name);
 
   base::WeakPtr<DocumentView> document_view_;
-  TestObserverPtr test_observer_;
+  TestHarnessPtr test_harness_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(Internals);
 };