Disable cras_rms from system logs

chrome/browser/chromeos/system_logs/command_line_log_source.cc

Index: chrome/browser/chromeos/system_logs/command_line_log_source.cc
diff --git a/chrome/browser/chromeos/system_logs/command_line_log_source.cc b/chrome/browser/chromeos/system_logs/command_line_log_source.cc
index eb74def7d702f02f044da643ba76eff464769183..0d8ea6c26dbe56c45ff23f23190f001e869521a8 100644
--- a/chrome/browser/chromeos/system_logs/command_line_log_source.cc
+++ b/chrome/browser/chromeos/system_logs/command_line_log_source.cc
@@ -37,6 +37,10 @@ void ExecuteCommandLines(system_logs::SystemLogsResponse* response) {
   command = CommandLine((base::FilePath("/usr/bin/audio_diagnostics")));
   commands.push_back(std::make_pair("audio_diagnostics", command));
 
+#if 0
+  // This command hangs as of R39. TODO(alhli): Make cras_test_client more
+  // robust or add a wrapper script that times out, and fix this or remove
+  // this code. crbug.com/419523
   command = CommandLine((base::FilePath("/usr/bin/cras_test_client")));
   command.AppendArg("--loopback_file");
   command.AppendArg("/dev/null");
@@ -46,6 +50,7 @@ void ExecuteCommandLines(system_logs::SystemLogsResponse* response) {
   command.AppendArg("0.01");
   command.AppendArg("--show_total_rms");
   commands.push_back(std::make_pair("cras_rms", command));
+#endif
 
   command = CommandLine((base::FilePath("/usr/bin/printenv")));
   commands.push_back(std::make_pair("env", command));