Unfork test_shell_main_gtk back into test_shell_main.

base/process_util_linux.cc

Index: base/process_util_linux.cc
diff --git a/base/process_util_linux.cc b/base/process_util_linux.cc
index db92ed9d7a9fe80e3befe224f60c58c6c3524811..2dba8089f46de5c6eadce2c6a9c14d32e10e4eeb 100644
--- a/base/process_util_linux.cc
+++ b/base/process_util_linux.cc
@@ -322,4 +322,9 @@ bool ProcessMetrics::GetIOCounters(IoCounters* io_counters) {
   return true;
 }
 
+int ProcessMetrics::GetCPUUsage() {
+  // TODO(port): This needs to be replaced by an call to getrusage().
+  return -1;
+}
+
 }  // namespace process_util