blob: 0f592a37f9a210d309f5fccf36c59bb21dc5e09b [file] [log] [blame]
// Copyright 2016 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 "base/macros.h"
namespace page_load_metrics {
// PageTrackDecider is an interface used to determine whether metrics should be
// tracked for a given page. This class is used by the core page load metrics
// tracking infrastructure in both the browser and render processes so policy
// decisions about which page loads to track are consistent across processes.
class PageTrackDecider {
virtual ~PageTrackDecider();
// Whether metrics should be tracked for the current page. This method invokes
// the pure virtual methods below to decide whether metrics should be tracked.
bool ShouldTrack();
// Whether the navigation for the current page has committed.
virtual bool HasCommitted() = 0;
// Whether the current page's URL is HTTP or HTTPS. Note that the page does
// not need to have committed, nor does the URL or hostname of the URL need to
// point at a valid web page or host, for this method to return true.
virtual bool IsHttpOrHttpsUrl() = 0;
// Whether the current page's URL is for a Chrome new tab page. Note that in
// some cases the new tab page is served over the network via https.
virtual bool IsNewTabPageUrl() = 0;
// The methods below can only be called if HasCommitted() returns true.
// Whether the current page is a Chrome-generated error page. Example error
// pages include pages displayed after a network error that did not result in
// receiving an HTTP/HTTPS response, such as the 'There is no Internet
// connection' page, which is displayed when the user attempts to navigate
// without an Internet connection. This method returns false for non-Chrome
// generated error pages, such as pages with 4xx/5xx response codes. To
// check whether the current page resulted in a 4xx/5xx error, use
// IsHTTPErrorPage() instead.
virtual bool IsChromeErrorPage() = 0;
// Returns the HTTP status code for the current page, or -1 if no status code
// is available.
virtual int GetHttpStatusCode() = 0;
} // namespace page_load_metrics