Provision to start base::SimpleTestTickClock at initial ticks

ui/display/chromeos/x11/native_display_event_dispatcher_x11_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 #include <X11/extensions/Xrandr.h>
 
 #undef Bool
 #undef None
 
@@ skipping 118 matching lines @@
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NativeDisplayEventDispatcherX11Test);
 };
 
 NativeDisplayEventDispatcherX11Test::NativeDisplayEventDispatcherX11Test()
     : xrandr_event_base_(10),
       helper_delegate_(new TestHelperDelegate()),
       dispatcher_(new NativeDisplayEventDispatcherX11(helper_delegate_.get(),
                                                       xrandr_event_base_)),
-      test_tick_clock_(new base::SimpleTestTickClock) {
-  test_tick_clock_->Advance(base::TimeDelta::FromMilliseconds(1));
+      test_tick_clock_(new base::SimpleTestTickClock(
+          base::TimeTicks() + base::TimeDelta::FromMilliseconds(1))) {
   dispatcher_->SetTickClockForTest(
       scoped_ptr<base::TickClock>(test_tick_clock_));
 }
 
 NativeDisplayEventDispatcherX11Test::~NativeDisplayEventDispatcherX11Test() {}
 
 void NativeDisplayEventDispatcherX11Test::DispatchScreenChangeEvent() {
   XRRScreenChangeNotifyEvent event = {0};
   event.type = xrandr_event_base_ + RRScreenChangeNotify;
 
@@ skipping 169 matching lines @@
   outputs.clear();
   outputs.push_back(CreateOutput(0, DISPLAY_CONNECTION_TYPE_UNKNOWN, 2, 11));
   helper_delegate_->set_cached_outputs(outputs.get());
 
   // External display should be updated if the id is zero.
   DispatchOutputChangeEvent(2, 11, 20, true);
   EXPECT_EQ(1, helper_delegate_->num_calls_notify_observers());
 }
 
 }  // namespace ui