Blink GC plugin: Add plugin flags for generating raw-pointer errors and unneeded-finalizer warnings.

tools/clang/blink_gc_plugin/tests/class_does_not_require_finalization.cpp

 // Copyright 2014 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 "non_virtual_trace.h"
+#include "class_does_not_require_finalization.h"
 
 namespace blink {
 
-void A::trace(Visitor* visitor)
+void DoesNotNeedFinalizer::trace(Visitor* visitor)
 {
 }
 
-void C::trace(Visitor* visitor)
+DoesNotNeedFinalizer2::~DoesNotNeedFinalizer2()
 {
-    B::trace(visitor);
 }
 
-void D::trace(Visitor* visitor)
+void DoesNotNeedFinalizer2::trace(Visitor* visitor)
 {
-    B::trace(visitor);
 }
 
+
 }