Hide addresses in traced code.

src/string-stream.cc

Index: src/string-stream.cc
diff --git a/src/string-stream.cc b/src/string-stream.cc
index fc07d94ded237ee4ca79ebde48fe036680de6910..ea50e36b00e6f36c436d0256a939c3e157c11c17 100644
--- a/src/string-stream.cc
+++ b/src/string-stream.cc
@@ -167,10 +167,14 @@ void StringStream::Add(Vector<const char> format, Vector<FmtElm> elms) {
       break;
     }
     case 'p': {
-      void* value = current.data_.u_pointer_;
-      EmbeddedVector<char, 20> formatted;
-      OS::SNPrintF(formatted, temp.start(), value);
-      Add(formatted.start());
+      if (!FLAG_hide_addresses_when_tracing) {
+        void* value = current.data_.u_pointer_;
+        EmbeddedVector<char, 20> formatted;
+        OS::SNPrintF(formatted, temp.start(), value);
+        Add(formatted.start());
+      } else {
+        Add("0xXXXXXXXX");
+      }
       break;
     }
     default: