[WIP NOT FOR COMMIT] Switch Android to libc++

third_party/re2/util/util.h

Index: third_party/re2/util/util.h
diff --git a/third_party/re2/util/util.h b/third_party/re2/util/util.h
index 83504454b28c40c38dd8c4ac79f8d1782697904a..0c18583d232e8c769e97acf97050878e237736e5 100644
--- a/third_party/re2/util/util.h
+++ b/third_party/re2/util/util.h
@@ -55,7 +55,7 @@ using std::tr1::unordered_set;
 #else
 
 #include <unordered_set>
-#if defined(WIN32) || defined(OS_ANDROID)
+#if defined(WIN32)

[Fabrice (no longer in Chrome), 2014/11/05 12:33:06]

I'm not sure that is still necessary, we've been using a C++11-compliant STL on
Windows for a while, right?

[Nico, 2014/11/05 17:30:10]

Yes, but re2 is a third_party project and re2 can't assume this. We eventually
want to reduce our downstream diff for re2 to 0 and pull re2 via deps.

 using std::tr1::unordered_set;
 #else
 using std::unordered_set;