rewrite_to_chrome_style: Consistently decide if things are in blink.

tools/clang/rewrite_to_chrome_style/tests/methods-expected.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.
 
+#include "gen/thing.h"
+
 namespace v8 {
 
 class InterfaceOutsideOfBlink {
  public:
   virtual void nonBlinkVirtual() = 0;
 };
 
 }  // namespace v8
 
 namespace blink {
@@ skipping 71 matching lines @@
  public:
   typedef T Testable::*UnspecifiedBoolType;
   // This method has a reference to a member in a "member context" and a
   // "non-member context" to verify both are rewritten.
   operator UnspecifiedBoolType() { return ptr_ ? &Testable::ptr_ : 0; }
 
  private:
   int ptr_;
 };
 
+namespace subname {
+
+class SubnameParent {
+  virtual void SubnameMethod() {}
+};
+
+}  // namespace subname
+
+class SubnameChild : public subname::SubnameParent {
+  // This subclasses from blink::subname::SubnameParent and should be renamed.
+  void SubnameMethod() override {}
+};
+
+class GenChild : public blink::GenClass {
+  // This subclasses from the blink namespace but in the gen directory so it
+  // should not be renamed.
+  void genMethod() override {}
+};
+
 }  // namespace blink
 
 // Test that overrides from outside the Blink namespace are also updated.
 class BovineTask : public blink::Task {
  public:
   using Task::DoTheWork;
   void ReallyDoTheWork() override;
 };
 
 class SuperBovineTask : public BovineTask {
@@ skipping 55 matching lines @@
 };
 
 }  // namespace WTF
 
 void F2() {
   blink::StructInBlink b;
   b.Function();
   WTF::StructInWTF w;
   w.Function();
 }