Buffer cross frame paint timing updates.

chrome/common/page_load_metrics/page_load_metrics_util.cc

-// Copyright 2015 The Chromium Authors. All rights reserved.
+// Copyright 2017 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/page_load_metrics/page_load_metrics_util.h"
+#include "chrome/common/page_load_metrics/page_load_metrics_util.h"
 
 #include <algorithm>
 
-#include "chrome/common/page_load_metrics/page_load_timing.h"
+#include "base/strings/string_util.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
-#include "url/gurl.h"
 
 namespace page_load_metrics {
 
-namespace {
-
-bool IsBackgroundAbort(const PageLoadExtraInfo& info) {
-  if (!info.started_in_foreground || !info.first_background_time)
-    return false;
-
-  if (!info.page_end_time)
-    return true;
-
-  return info.first_background_time <= info.page_end_time;
-}
-
-PageAbortReason GetAbortReasonForEndReason(PageEndReason end_reason) {
-  switch (end_reason) {
-    case END_RELOAD:
-      return ABORT_RELOAD;
-    case END_FORWARD_BACK:
-      return ABORT_FORWARD_BACK;
-    case END_NEW_NAVIGATION:
-      return ABORT_NEW_NAVIGATION;
-    case END_STOP:
-      return ABORT_STOP;
-    case END_CLOSE:
-      return ABORT_CLOSE;
-    case END_OTHER:
-      return ABORT_OTHER;
-    default:
-      return ABORT_NONE;
-  }
-}
-
-}  // namespace
-
 base::Optional<std::string> GetGoogleHostnamePrefix(const GURL& url) {
   const size_t registry_length =
       net::registry_controlled_domains::GetRegistryLength(
           url,
 
           // Do not include unknown registries (registries that don't have any
           // matches in effective TLD names).
           net::registry_controlled_domains::EXCLUDE_UNKNOWN_REGISTRIES,
 
           // Do not include private registries, such as appspot.com. We don't
@@ skipping 19 matching lines @@
   }
 
   return std::string(hostname_minus_registry.substr(
       0, hostname_minus_registry.length() - strlen(".google")));
 }
 
 bool IsGoogleHostname(const GURL& url) {
   return GetGoogleHostnamePrefix(url).has_value();
 }
 
-bool WasStartedInForegroundOptionalEventInForeground(
-    const base::Optional<base::TimeDelta>& event,
-    const PageLoadExtraInfo& info) {
-  return info.started_in_foreground && event &&
-         (!info.first_background_time ||
-          event.value() <= info.first_background_time.value());
-}
-
-PageAbortInfo GetPageAbortInfo(const PageLoadExtraInfo& info) {
-  if (IsBackgroundAbort(info)) {
-    // Though most cases where a tab is backgrounded are user initiated, we
-    // can't be certain that we were backgrounded due to a user action. For
-    // example, on Android, the screen times out after a period of inactivity,
-    // resulting in a non-user-initiated backgrounding.
-    return {ABORT_BACKGROUND, UserInitiatedInfo::NotUserInitiated(),
-            info.first_background_time.value()};
-  }
-
-  PageAbortReason abort_reason =
-      GetAbortReasonForEndReason(info.page_end_reason);
-  if (abort_reason == ABORT_NONE)
-    return PageAbortInfo();
-
-  return {abort_reason, info.page_end_user_initiated_info,
-          info.page_end_time.value()};
-}
-
-base::Optional<base::TimeDelta> GetInitialForegroundDuration(
-    const PageLoadExtraInfo& info,
-    base::TimeTicks app_background_time) {
-  if (!info.started_in_foreground)
-    return base::Optional<base::TimeDelta>();
-
-  base::Optional<base::TimeDelta> time_on_page =
-      OptionalMin(info.first_background_time, info.page_end_time);
-
-  // If we don't have a time_on_page value yet, and we have an app background
-  // time, use the app background time as our end time. This addresses cases
-  // where the Chrome app is backgrounded before the page load is complete, on
-  // platforms where Chrome may be killed once it goes into the background
-  // (Android). In these cases, we use the app background time as the 'end
-  // time'.
-  if (!time_on_page && !app_background_time.is_null()) {
-    time_on_page = app_background_time - info.navigation_start;
-  }
-  return time_on_page;
-}
-
 base::Optional<base::TimeDelta> OptionalMin(
     const base::Optional<base::TimeDelta>& a,
     const base::Optional<base::TimeDelta>& b) {
   if (a && !b)
     return a;
   if (b && !a)
     return b;
   if (!a && !b)
     return a;  // doesn't matter which
   return base::Optional<base::TimeDelta>(std::min(a.value(), b.value()));
 }
 
-bool DidObserveLoadingBehaviorInAnyFrame(
-    const page_load_metrics::PageLoadExtraInfo& info,
-    blink::WebLoadingBehaviorFlag behavior) {
-  const int all_frame_loading_behavior_flags =
-      info.main_frame_metadata.behavior_flags |
-      info.subframe_metadata.behavior_flags;
-
-  return (all_frame_loading_behavior_flags & behavior) != 0;
-}
-
 }  // namespace page_load_metrics