Update rewrite_to_chrome_style tool to also rename methods.

tools/clang/rewrite_to_chrome_style/tests/methods-original.cc

+// 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.
+
+namespace blink {
+
+class Task {
+ public:
+  // Already style-compliant methods shouldn't change.
+  void OutputDebugString() {}
+
+  // Tests that the declarations for methods are updated.
+  void doTheWork();
+  virtual void reallyDoTheWork() = 0;
+
+  // Note: this is purposely copyable and assignable, to make sure the Clang
+  // tool doesn't try to emit replacements for things that aren't explicitly
+  // written.
+  // TODO(dcheng): Add an explicit test for something like operator+.
+};
+
+// Test that the actual method definition is also updated.
+void Task::doTheWork() {
+  reallyDoTheWork();
+}
+
+}  // namespace blink
+
+namespace Moo {
+
+// Test that overrides from outside the Blink namespace are also updated.
+class BovineTask : public blink::Task {
+ public:
+  void reallyDoTheWork() override;
+};
+
+void BovineTask::reallyDoTheWork() {
+  doTheWork();
+  // Calls via an overridden method should also be updated.
+  reallyDoTheWork();
+}
+
+// Finally, test that method pointers are also updated.
+void F() {
+  void (blink::Task::*p1)() = &blink::Task::doTheWork;
+  void (blink::Task::*p2)() = &BovineTask::doTheWork;
+  void (blink::Task::*p3)() = &blink::Task::reallyDoTheWork;
+  void (BovineTask::*p4)() = &BovineTask::reallyDoTheWork;
+}
+
+}  // namespace Moo