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 d45e27b52f00f7638a9b42b9cd4781887436faa5..734d7593761f234fead4c2801fb5791de7498b3b 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
+++ b/tools/clang/rewrite_to_chrome_style/tests/methods-original.cc
@@ -210,3 +210,25 @@ void F2() {
   WTF::StructInWTF w;
   w.function();
 }
+
+namespace blink {
+
+class ClassDeclaredInsideBlink {
+ public:
+  static void methodDefinedOutsideBlink();
+};
+
+namespace internal {
+
+class InternalClass {
+ public:
+  static void method();
+};
+
+}  // namespace internal
+
+}  // namespace blink
+
+// https://crbug.com/640688 - need to rewrite method name below.
+void blink::ClassDeclaredInsideBlink::methodDefinedOutsideBlink() {}
+void blink::internal::InternalClass::method() {}