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

tools/clang/rewrite_to_chrome_style/tests/functions-expected.cc

Index: tools/clang/rewrite_to_chrome_style/tests/functions-expected.cc
diff --git a/tools/clang/rewrite_to_chrome_style/tests/functions-expected.cc b/tools/clang/rewrite_to_chrome_style/tests/functions-expected.cc
index ed8928b68913992eeb5644cb6fab72302b4bfa42..d4a1790fffac91901c971b9ad9642b8a8fd50983 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/functions-expected.cc
+++ b/tools/clang/rewrite_to_chrome_style/tests/functions-expected.cc
@@ -36,8 +36,12 @@ void F() {
   int (*function_pointer)(int, int) = &TestFunctionThatTakesTwoInts;
 }
 
+void Bug640688();  // Declaration within blink namespace.
+
 }  // namespace blink
 
+void blink::Bug640688() {}  // Definition outside of blink namespace.
+
 using blink::TestFunctionThatTakesTwoInts;
 
 void G() {