Tweak |in_blink_namespace|, to look at ancestors *and also* at qualifiers.

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 12165b7ad788fcb05f1e2009d5e57fd1f7ee344c..d422fe81d1d7a91abc798e7f1a0d585d7f3ca1a4 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
+++ b/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
@@ -193,3 +193,15 @@ void F2() {
   WTF::StructInWTF w;
   w.function();
 }
+
+namespace blink {
+
+class ClassDeclaredInsideBlink {
+ public:
+  static void methodDefinedOutsideBlink();
+};
+
+}  // namespace blink
+
+// https://crbug.com/640688 - need to rewrite method name below.
+void blink::ClassDeclaredInsideBlink::methodDefinedOutsideBlink() {}