Hide knowledge of webkit::ppapi::PluginDelegate from chrome. This is part of moving ppapi implement…

webkit/plugins/ppapi/host_var_tracker_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/plugins/ppapi/ppapi_unittest.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/c/ppp_instance.h"
 #include "third_party/npapi/bindings/npruntime.h"
@@ skipping 67 matching lines @@
   }
 
   HostVarTracker& tracker() {
     return *HostGlobals::Get()->host_var_tracker();
   }
 };
 
 TEST_F(HostVarTrackerTest, DeleteObjectVarWithInstance) {
   // Make a second instance (the test harness already creates & manages one).
   scoped_refptr<PluginInstance> instance2(
-      PluginInstance::Create(delegate(), module(), NULL, GURL()));
+      PluginInstance::Create(delegate(), NULL, module(), NULL, GURL()));
   PP_Instance pp_instance2 = instance2->pp_instance();
 
   // Make an object var.
   NPObjectReleaser npobject(NewTrackedNPObject());
   NPObjectToPPVarForTest(instance2.get(), npobject.get());
 
   EXPECT_EQ(1, g_npobjects_alive);
   EXPECT_EQ(1, tracker().GetLiveNPObjectVarsForInstance(pp_instance2));
 
   // Free the instance, this should release the ObjectVar.
@@ skipping 30 matching lines @@
 
   // Releasing the resource should free the internal ref, and so making a new
   // one now should generate a new ID.
   PP_Var pp_object3 = NPObjectToPPVarForTest(instance(), npobject.get());
   EXPECT_NE(pp_object1.value.as_id, pp_object3.value.as_id);
   var_tracker->ReleaseVar(static_cast<int32_t>(pp_object3.value.as_id));
 }
 
 }  // namespace ppapi
 }  // namespace webkit