Update from https://crrev.com/318214

tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.h

Index: tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.h
diff --git a/tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.h b/tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.h
new file mode 100644
index 0000000000000000000000000000000000000000..441ef32c3549f510efe9a0fd015d5741cb665cd8
--- /dev/null
+++ b/tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.h
@@ -0,0 +1,87 @@
+// 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 TRACE_AFTER_DISPATCH_IMPL_ERROR_H_
+#define TRACE_AFTER_DISPATCH_IMPL_ERROR_H_
+
+#include "heap/stubs.h"
+
+namespace blink {
+
+class X : public GarbageCollected<X> {
+ public:
+  void trace(Visitor*) {}
+};
+
+enum ClassTag {
+  BASE, DERIVED
+};
+
+class TraceAfterDispatchInlinedBase
+    : public GarbageCollected<TraceAfterDispatchInlinedBase> {
+ public:
+  explicit TraceAfterDispatchInlinedBase(ClassTag tag) : tag_(tag) {}
+
+  void trace(Visitor* visitor);
+
+  void traceAfterDispatch(Visitor* visitor) { traceAfterDispatchImpl(visitor); }
+
+ private:
+  template <typename VisitorDispatcher>
+  void traceAfterDispatchImpl(VisitorDispatcher visitor) {
+    // No trace call; should get a warning.
+  }
+
+  ClassTag tag_;
+  Member<X> x_base_;
+};
+
+class TraceAfterDispatchInlinedDerived : public TraceAfterDispatchInlinedBase {
+ public:
+  TraceAfterDispatchInlinedDerived() : TraceAfterDispatchInlinedBase(DERIVED) {}
+
+  void traceAfterDispatch(Visitor* visitor) { traceAfterDispatchImpl(visitor); }
+
+ private:
+  template <typename VisitorDispatcher>
+  void traceAfterDispatchImpl(VisitorDispatcher visitor) {
+    // No trace call (for member and base class).
+  }
+
+  Member<X> x_derived_;
+};
+
+class TraceAfterDispatchExternBase
+    : public GarbageCollected<TraceAfterDispatchExternBase> {
+ public:
+  explicit TraceAfterDispatchExternBase(ClassTag tag) : tag_(tag) {}
+
+  void trace(Visitor* visitor);
+
+  void traceAfterDispatch(Visitor* visitor);
+
+ private:
+  template <typename VisitorDispatcher>
+  void traceAfterDispatchImpl(VisitorDispatcher visitor);
+
+  ClassTag tag_;
+  Member<X> x_base_;
+};
+
+class TraceAfterDispatchExternDerived : public TraceAfterDispatchExternBase {
+ public:
+  TraceAfterDispatchExternDerived() : TraceAfterDispatchExternBase(DERIVED) {}
+
+  void traceAfterDispatch(Visitor* visitor);
+
+ private:
+  template <typename VisitorDispatcher>
+  void traceAfterDispatchImpl(VisitorDispatcher visitor);
+
+  Member<X> x_derived_;
+};
+
+}
+
+#endif  // TRACE_AFTER_DISPATCH_IMPL_ERROR_H_