Add Startup.BrowserView.FirstPaint / .CompositingEnded histograms.

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 81 matching lines @@
     : content::WebContentsObserver(web_contents),
       collected_paint_metric_(false),
       collected_load_metric_(false),
       collected_main_navigation_start_metric_(false),
       collected_main_navigation_finished_metric_(false),
       workload_(workload) {}
 
 void FirstWebContentsProfiler::DidFirstVisuallyNonEmptyPaint() {
   if (collected_paint_metric_)
     return;
-  if (startup_metric_utils::WasNonBrowserUIDisplayed()) {
+  if (startup_metric_utils::WasMainWindowStartupInterrupted()) {
     FinishedCollectingMetrics(FinishReason::ABANDON_BLOCKING_UI);
     return;
   }
 
   collected_paint_metric_ = true;
   startup_metric_utils::RecordFirstWebContentsNonEmptyPaint(
       base::TimeTicks::Now());
 
   metrics::TrackingSynchronizer::OnProfilingPhaseCompleted(
       metrics::ProfilerEventProto::EVENT_FIRST_NONEMPTY_PAINT);
 
   if (IsFinishedCollectingMetrics())
     FinishedCollectingMetrics(FinishReason::DONE);
 }
 
 void FirstWebContentsProfiler::DocumentOnLoadCompletedInMainFrame() {
   if (collected_load_metric_)
     return;
-  if (startup_metric_utils::WasNonBrowserUIDisplayed()) {
+  if (startup_metric_utils::WasMainWindowStartupInterrupted()) {
     FinishedCollectingMetrics(FinishReason::ABANDON_BLOCKING_UI);
     return;
   }
 
   collected_load_metric_ = true;
   startup_metric_utils::RecordFirstWebContentsMainFrameLoad(
       base::TimeTicks::Now());
 
   if (IsFinishedCollectingMetrics())
     FinishedCollectingMetrics(FinishReason::DONE);
 }
 
 void FirstWebContentsProfiler::DidStartNavigation(
     content::NavigationHandle* navigation_handle) {
   if (collected_main_navigation_start_metric_)
     return;
-  if (startup_metric_utils::WasNonBrowserUIDisplayed()) {
+  if (startup_metric_utils::WasMainWindowStartupInterrupted()) {
     FinishedCollectingMetrics(FinishReason::ABANDON_BLOCKING_UI);
     return;
   }
 
   if (content::IsBrowserSideNavigationEnabled()) {
     // With PlzNavigate, DidStartNavigation is called synchronously on
     // browser-initiated loads instead of through an IPC. This means that we
     // will miss this signal. Instead we record it when the commit completes.
     return;
   }
@@ skipping 16 matching lines @@
     //       but fires after a lot of idle time when the user finally navigates
     //       to another page that does trigger it.
     if (navigation_handle->IsInMainFrame() &&
         navigation_handle->HasCommitted() &&
         !navigation_handle->IsSameDocument()) {
       FinishedCollectingMetrics(FinishReason::ABANDON_NEW_NAVIGATION);
     }
     return;
   }
 
-  if (startup_metric_utils::WasNonBrowserUIDisplayed()) {
+  if (startup_metric_utils::WasMainWindowStartupInterrupted()) {
     FinishedCollectingMetrics(FinishReason::ABANDON_BLOCKING_UI);
     return;
   }
 
   // The first navigation has to be the main frame's.
   DCHECK(navigation_handle->IsInMainFrame());
 
   if (!navigation_handle->HasCommitted() ||
       navigation_handle->IsErrorPage()) {
     FinishedCollectingMetrics(FinishReason::ABANDON_NAVIGATION_ERROR);
@@ skipping 63 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