content_to_visible_time_reporter.cc

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/public/common/page/content_to_visible_time_reporter.h"

#include <utility>

#include "base/functional/bind.h"
#include "base/metrics/histogram_functions.h"
#include "base/strings/strcat.h"
#include "base/time/time.h"
#include "base/trace_event/trace_id_helper.h"
#include "base/trace_event/typed_macros.h"
#include "base/tracing/protos/chrome_track_event.pbzero.h"
#include "components/viz/common/frame_timing_details.h"
#include "third_party/abseil-cpp/absl/cleanup/cleanup.h"
#include "third_party/blink/public/mojom/widget/record_content_to_visible_time_request.mojom.h"
#include "third_party/perfetto/include/perfetto/tracing/event_context.h"
#include "third_party/perfetto/include/perfetto/tracing/track.h"

namespace blink {

namespace {

TabSwitchResult;

const char* GetHistogramSuffix(
    bool has_saved_frames,
    const mojom::RecordContentToVisibleTimeRequest& start_state) { … }

void RecordBackForwardCacheRestoreMetric(
    const base::TimeTicks requested_time,
    base::TimeTicks presentation_timestamp) { … }

bool IsLatencyTraceCategoryEnabled() { … }

void RecordTabSwitchTraceEvent(base::TimeTicks start_time,
                               base::TimeTicks end_time,
                               TabSwitchResult result,
                               bool has_saved_frames,
                               bool destination_is_loaded) { … }

// Records histogram and trace event for the unfolding latency.
void RecordUnfoldHistogramAndTraceEvent(
    base::TimeTicks begin_timestamp,
    const viz::FrameTimingDetails& frame_timing_details) { … }

}  // namespace

ContentToVisibleTimeReporter::ContentToVisibleTimeReporter() = default;

ContentToVisibleTimeReporter::~ContentToVisibleTimeReporter() = default;

ContentToVisibleTimeReporter::SuccessfulPresentationTimeCallback
ContentToVisibleTimeReporter::TabWasShown(
    bool has_saved_frames,
    mojom::RecordContentToVisibleTimeRequestPtr start_state) { … }

ContentToVisibleTimeReporter::SuccessfulPresentationTimeCallback
ContentToVisibleTimeReporter::TabWasShown(bool has_saved_frames,
                                          base::TimeTicks event_start_time,
                                          bool destination_is_loaded,
                                          bool show_reason_tab_switching,
                                          bool show_reason_bfcache_restore) { … }

ContentToVisibleTimeReporter::SuccessfulPresentationTimeCallback
ContentToVisibleTimeReporter::GetCallbackForNextFrameAfterUnfold(
    base::TimeTicks begin_timestamp) { … }

void ContentToVisibleTimeReporter::TabWasHidden() { … }

void ContentToVisibleTimeReporter::
    RecordHistogramsAndTraceEventsWithFrameTimingDetails(
        TabSwitchResult tab_switch_result,
        bool show_reason_tab_switching,
        bool show_reason_bfcache_restore,
        const viz::FrameTimingDetails& frame_timing_details) { … }

void ContentToVisibleTimeReporter::RecordHistogramsAndTraceEvents(
    TabSwitchResult tab_switch_result,
    bool show_reason_tab_switching,
    bool show_reason_bfcache_restore,
    base::TimeTicks presentation_timestamp) { … }

void ContentToVisibleTimeReporter::OverwriteTabSwitchStartState(
    mojom::RecordContentToVisibleTimeRequestPtr state,
    bool has_saved_frames) { … }

}  // namespace blink
chromium/third_party/blink/common/page/content_to_visible_time_reporter.cc
