Refactor recording of the Startup.FirstWebContents.RenderProcessHostInit.ToNonEmptyPaint metric

chrome/browser/metrics/first_web_contents_profiler.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 "chrome/browser/metrics/first_web_contents_profiler.h"
 
 #include <string>
 
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 90 matching lines @@
 void FirstWebContentsProfiler::DidFirstVisuallyNonEmptyPaint() {
   if (collected_paint_metric_)
     return;
   if (startup_metric_utils::WasMainWindowStartupInterrupted()) {
     FinishedCollectingMetrics(FinishReason::ABANDON_BLOCKING_UI);
     return;
   }
 
   collected_paint_metric_ = true;
   startup_metric_utils::RecordFirstWebContentsNonEmptyPaint(
-      base::TimeTicks::Now(), web_contents()
-                                  ->GetMainFrame()
-                                  ->GetProcess()
-                                  ->GetInitTimeForNavigationMetrics());
+      base::TimeTicks::Now());
 
   metrics::TrackingSynchronizer::OnProfilingPhaseCompleted(
       metrics::ProfilerEventProto::EVENT_FIRST_NONEMPTY_PAINT);
 
   if (IsFinishedCollectingMetrics())
     FinishedCollectingMetrics(FinishReason::DONE);
 }
 
 void FirstWebContentsProfiler::DocumentOnLoadCompletedInMainFrame() {
   if (collected_load_metric_)
@@ skipping 129 matching lines @@
   const bool single_tab = browser_list->size() == 1 && tab_strip->count() == 1;
 
   // FirstWebContentsProfiler owns itself and is also bound to
   // |web_contents|'s lifetime by observing WebContentsDestroyed().
   new FirstWebContentsProfiler(web_contents,
                                single_tab ? WebContentsWorkload::SINGLE_TAB
                                           : WebContentsWorkload::MULTI_TABS);
 }
 
 }  // namespace metrics