Minor changes to allow Pepper InstancePrivate tests to pass with gin

ppapi/tests/test_instance_deprecated.h

Index: ppapi/tests/test_instance_deprecated.h
diff --git a/ppapi/tests/test_instance_deprecated.h b/ppapi/tests/test_instance_deprecated.h
index dfccd138938e2b8a8b56519920a78d379fc02bee..58b3efee547252e90344a29236216b1e51e9897c 100644
--- a/ppapi/tests/test_instance_deprecated.h
+++ b/ppapi/tests/test_instance_deprecated.h
@@ -26,6 +26,10 @@ class TestInstance : public TestCase {
   // happens on instance shutdown.
   void LeakReferenceAndIgnore(const pp::Var& leaked);
 
+  void set_instance_object_destroyed(bool destroyed) {
+    instance_object_destroyed_ = destroyed;
+  }
+
  protected:
   // Test case protected overrides.
   virtual pp::deprecated::ScriptableObject* CreateTestObject();
@@ -40,6 +44,9 @@ class TestInstance : public TestCase {
   // Value written by set_string which is called by the ScriptableObject. This
   // allows us to keep track of what was called.
   std::string string_;
+
+  // Whether the instance object for this instance has been destroyed.
+  bool instance_object_destroyed_;
 };
 
 #endif  // PPAPI_TESTS_TEST_INSTANCE_H_