Update from https://crrev.com/316786

tools/clang/blink_gc_plugin/tests/traceimpl_derived_from_templated_base.h

Index: tools/clang/blink_gc_plugin/tests/traceimpl_derived_from_templated_base.h
diff --git a/tools/clang/blink_gc_plugin/tests/traceimpl_derived_from_templated_base.h b/tools/clang/blink_gc_plugin/tests/traceimpl_derived_from_templated_base.h
new file mode 100644
index 0000000000000000000000000000000000000000..21b9978970c9250a37a29882e794a254a583b864
--- /dev/null
+++ b/tools/clang/blink_gc_plugin/tests/traceimpl_derived_from_templated_base.h
@@ -0,0 +1,37 @@
+// Copyright 2015 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.
+
+#ifndef TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_
+#define TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_
+
+#include "heap/stubs.h"
+
+namespace blink {
+
+class X : public GarbageCollected<X> {
+ public:
+  virtual void trace(Visitor*) {}
+};
+
+template <int Y>
+class TraceImplTemplatedBase
+    : public GarbageCollected<TraceImplTemplatedBase<Y> > {
+ public:
+  void trace(Visitor* visitor) { traceImpl(visitor); }
+
+  template <typename VisitorDispatcher>
+  void traceImpl(VisitorDispatcher visitor) {
+    visitor->trace(x_);
+  }
+
+ private:
+  Member<X> x_;
+};
+
+class TraceImplDerivedFromTemplatedBase : public TraceImplTemplatedBase<0> {
+};
+
+}
+
+#endif  // TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_