Cleanup: IWYU for base/gtest_prod_util.h.

net/dns/dns_config_service.h

Index: net/dns/dns_config_service.h
diff --git a/net/dns/dns_config_service.h b/net/dns/dns_config_service.h
index 05a9d662a8933aee8ed929f30557b29cb7cbadfc..10d93ac13cfd5cbed013edb74f845cc50095cd81 100644
--- a/net/dns/dns_config_service.h
+++ b/net/dns/dns_config_service.h
@@ -9,7 +9,6 @@
 #include <string>
 #include <vector>
 
-#include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/threading/non_thread_safe.h"
@@ -157,7 +156,7 @@ class NET_EXPORT_PRIVATE DnsConfigService
     DNS_CONFIG_WATCH_MAX,
   };
 
- // Immediately attempts to read the current configuration.
+  // Immediately attempts to read the current configuration.
   virtual void ReadNow() = 0;
   // Registers system watchers. Returns true iff succeeds.
   virtual bool StartWatching() = 0;