diff -r 000000000000 -r 6474c204b198 media/webrtc/trunk/tools/clang/plugins/tests/overridden_methods.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/webrtc/trunk/tools/clang/plugins/tests/overridden_methods.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,38 @@
+// 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 "overridden_methods.h"
+
+// Fill in the implementations
+void DerivedClass::SomeMethod() {}
+void DerivedClass::SomeOtherMethod() {}
+void DerivedClass::WebKitModifiedSomething() {}
+
+class ImplementationInterimClass : public BaseClass {
+ public:
+  // Should not warn about pure virtual methods.
+  virtual void SomeMethod() = 0;
+};
+
+class ImplementationDerivedClass : public ImplementationInterimClass,
+                                   public webkit_glue::WebKitObserverImpl {
+ public:
+  // Should not warn about destructors.
+  virtual ~ImplementationDerivedClass() {}
+  // Should warn.
+  virtual void SomeMethod();
+  // Should not warn if marked as override.
+  virtual void SomeOtherMethod() override;
+  // Should not warn for inline implementations in implementation files.
+  virtual void SomeInlineMethod() {}
+  // Should not warn if overriding a method whose origin is WebKit.
+  virtual void WebKitModifiedSomething();
+  // Should warn if overridden method isn't pure.
+  virtual void SomeNonPureBaseMethod() {}
+};
+
+int main() {
+  DerivedClass something;
+  ImplementationDerivedClass something_else;
+}