Use TimeTicks as much as possible in startup_metric_utils.

components/html_viewer/html_widget.cc

 // Copyright 2015 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 "components/html_viewer/html_widget.h"
 
 #include "base/command_line.h"
 #include "components/html_viewer/blink_settings.h"
 #include "components/html_viewer/global_state.h"
 #include "components/html_viewer/ime_controller.h"
@@ skipping 108 matching lines @@
 }
 
 blink::WebLayerTreeView* HTMLWidgetRootLocal::layerTreeView() {
   return web_layer_tree_view_impl_.get();
 }
 
 void HTMLWidgetRootLocal::didMeaningfulLayout(
     blink::WebMeaningfulLayout layout_type) {
   static bool called = false;
   if (!called && layout_type == blink::WebMeaningfulLayout::VisuallyNonEmpty) {
-    const int64 time = base::Time::Now().ToInternalValue();
+    const int64 ticks = base::TimeTicks::Now().ToInternalValue();
     tracing::StartupPerformanceDataCollectorPtr collector =
         StatsCollectionController::ConnectToDataCollector(app_);
     if (collector)
-      collector->SetFirstVisuallyNonEmptyLayoutTime(time);
+      collector->SetFirstVisuallyNonEmptyLayoutTicks(ticks);
     called = true;
   }
 }
 
 void HTMLWidgetRootLocal::resetInputMethod() {
   ime_controller_->ResetInputMethod();
 }
 
 void HTMLWidgetRootLocal::didHandleGestureEvent(
     const blink::WebGestureEvent& event,
@@ skipping 70 matching lines @@
 
 void HTMLWidgetLocalRoot::didUpdateTextOfFocusedElementByNonUserInput() {
   ime_controller_->DidUpdateTextOfFocusedElementByNonUserInput();
 }
 
 void HTMLWidgetLocalRoot::showImeIfNeeded() {
   ime_controller_->ShowImeIfNeeded();
 }
 
 }  // namespace html_viewer