Switch to TimeDelta interfaces in chrome automation test infrastructure.

chrome/test/automation/automation_proxy.cc

Index: chrome/test/automation/automation_proxy.cc
diff --git a/chrome/test/automation/automation_proxy.cc b/chrome/test/automation/automation_proxy.cc
index 0137200a2a765952ae076a3a7155bd78e812a137..d5f1a60e7eef8c1fed7b632be998446a43c22095 100644
--- a/chrome/test/automation/automation_proxy.cc
+++ b/chrome/test/automation/automation_proxy.cc
@@ -97,7 +97,7 @@ class AutomationMessageFilter : public IPC::ChannelProxy::MessageFilter {
 }  // anonymous namespace
 
 
-AutomationProxy::AutomationProxy(int action_timeout_ms,
+AutomationProxy::AutomationProxy(base::TimeDelta action_timeout,
                                  bool disconnect_on_failure)
     : app_launched_(true, false),
       initial_loads_complete_(true, false),
@@ -106,13 +106,12 @@ AutomationProxy::AutomationProxy(int action_timeout_ms,
       perform_version_check_(false),
       disconnect_on_failure_(disconnect_on_failure),
       channel_disconnected_on_failure_(false),
-      action_timeout_(
-          TimeDelta::FromMilliseconds(action_timeout_ms)),
+      action_timeout_(action_timeout),
       listener_thread_id_(0) {
   // base::WaitableEvent::TimedWait() will choke if we give it a negative value.
   // Zero also seems unreasonable, since we need to wait for IPC, but at
   // least it is legal... ;-)
-  DCHECK_GE(action_timeout_ms, 0);
+  DCHECK_GE(action_timeout.InMilliseconds(), 0);
   listener_thread_id_ = base::PlatformThread::CurrentId();
   InitializeHandleTracker();
   InitializeThread();