chromium/chrome/browser/ui/webui/webui_load_timer.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 "chrome/browser/ui/webui/webui_load_timer.h"

#include "base/metrics/histogram.h"
#include "base/timer/elapsed_timer.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/web_contents.h"

namespace {

// Extract UMA_HISTOGRAM_TIMES to allow multiple calls from the same location
// with different names. This skips some optimization, but we don't expect to
// call this frequently.
void CallUmaHistogramTimes(const std::string& name, base::TimeDelta duration) { … }

}  // namespace

WebuiLoadTimer::WebuiLoadTimer(
    content::WebContents* web_contents,
    const std::string& document_initial_load_uma_id,
    const std::string& document_load_completed_uma_id)
    : … { … }

WebuiLoadTimer::~WebuiLoadTimer() = default;

void WebuiLoadTimer::DidStartNavigation(
    content::NavigationHandle* navigation_handle) { … }

void WebuiLoadTimer::DOMContentLoaded(
    content::RenderFrameHost* render_frame_host) { … }

void WebuiLoadTimer::DocumentOnLoadCompletedInPrimaryMainFrame() { … }