rewrite_to_chrome_style: Consistently decide if things are in blink.

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

Index: tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
diff --git a/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc b/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
index 040582dd79f524c57e8c3c552ad09a6058612b0a..12165b7ad788fcb05f1e2009d5e57fd1f7ee344c 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
+++ b/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
@@ -2,6 +2,8 @@
 // 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 {
@@ -97,6 +99,25 @@ class Testable {
   int m_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.