Namespace-qualify calls to logging::MakeCheckOpString

base/logging.h

Index: base/logging.h
diff --git a/base/logging.h b/base/logging.h
index d0aba8209432ea46c8ea87b4a9420b88ece182b8..714545c02bb06ac7f1b31e8a007b671e6dc11d6d 100644
--- a/base/logging.h
+++ b/base/logging.h
@@ -589,11 +589,11 @@ std::string* MakeCheckOpString<std::string, std::string>(
   inline std::string* Check##name##Impl(const t1& v1, const t2& v2, \
                                         const char* names) { \
     if (v1 op v2) return NULL; \
-    else return MakeCheckOpString(v1, v2, names); \
+    else return ::logging::MakeCheckOpString(v1, v2, names);    \
   } \
   inline std::string* Check##name##Impl(int v1, int v2, const char* names) { \
     if (v1 op v2) return NULL; \
-    else return MakeCheckOpString(v1, v2, names); \
+    else return ::logging::MakeCheckOpString(v1, v2, names);    \
   }
 DEFINE_CHECK_OP_IMPL(EQ, ==)
 DEFINE_CHECK_OP_IMPL(NE, !=)