Ignore comment lines in proguard maps.

Change-Id: Idb9b465145893c3b8b061ed079863fe68910012a
diff --git a/src/profiling/deobfuscator.cc b/src/profiling/deobfuscator.cc
index 1a77647..ba58dfa 100644
--- a/src/profiling/deobfuscator.cc
+++ b/src/profiling/deobfuscator.cc
@@ -159,7 +159,7 @@
 // See https://www.guardsquare.com/en/products/proguard/manual/retrace for the
 // file format we are parsing.
 base::Status ProguardParser::AddLine(std::string line) {
-  if (line.length() == 0)
+  if (line.length() == 0 || line[0] == '#')
     return base::Status();
   bool is_member = line[0] == ' ';
   if (is_member && !current_class_) {