Remove the unused remnants of NPObject from Pepper

content/renderer/pepper/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 "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/renderer/pepper/host_globals.h"
 #include "content/renderer/pepper/host_var_tracker.h"
 #include "content/renderer/pepper/mock_resource.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
@@ skipping 82 matching lines @@
     EXPECT_EQ(1, tracker().GetLiveV8ObjectVarsForTest(pp_instance2));
     // Purposely leak the var.
     var.Release();
   }
 
   // Free the instance, this should release the ObjectVar.
   instance2 = NULL;
   EXPECT_EQ(0, tracker().GetLiveV8ObjectVarsForTest(pp_instance2));
 }
 
-// Make sure that using the same NPObject should give the same PP_Var
+// Make sure that using the same v8 object should give the same PP_Var
 // each time.
 TEST_F(HostVarTrackerTest, ReuseVar) {
   PepperTryCatchForTest try_catch(instance());
 
   v8::Handle<v8::Value> v8_object = MyObject::Create(v8::Isolate::GetCurrent());
   ppapi::ScopedPPVar pp_object1 = try_catch.FromV8(v8_object);
   ppapi::ScopedPPVar pp_object2 = try_catch.FromV8(v8_object);
 
   // The two results should be the same.
   EXPECT_EQ(pp_object1.get().value.as_id, pp_object2.get().value.as_id);
@@ skipping 11 matching lines @@
   pp_object1 = ppapi::ScopedPPVar();
   pp_object2 = ppapi::ScopedPPVar();
 
   // Releasing the resource should free the internal ref, and so making a new
   // one now should generate a new ID.
   ppapi::ScopedPPVar pp_object3 = try_catch.FromV8(v8_object);
   EXPECT_NE(pp_object1.get().value.as_id, pp_object3.get().value.as_id);
 }
 
 }  // namespace content