Display DNS probe results.

chrome/common/net/net_error_tracker.cc

-// Copyright (c) 2013 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/common/net/net_error_tracker.h"
-
-NetErrorTracker::NetErrorTracker(const Callback& callback)
-    : callback_(callback),
-      load_state_(LOAD_NONE),
-      load_type_(PAGE_NORMAL),
-      error_type_(ERROR_OTHER),
-      dns_error_page_state_(DNS_ERROR_PAGE_NONE) {
-}
-
-NetErrorTracker::~NetErrorTracker() {
-}
-
-void NetErrorTracker::OnStartProvisionalLoad(FrameType frame, PageType page) {
-  if (frame == FRAME_SUB)
-    return;
-
-  load_state_ = LOAD_STARTED;
-  load_type_ = page;
-
-  // TODO(ttuttle): Add support for aborts, then move this to OnCommit.
-  if (load_type_ == PAGE_NORMAL)
-    SetDnsErrorPageState(DNS_ERROR_PAGE_NONE);
-}
-
-void NetErrorTracker::OnCommitProvisionalLoad(FrameType frame) {
-  if (frame == FRAME_SUB)
-    return;
-
-  load_state_ = LOAD_COMMITTED;
-}
-
-void NetErrorTracker::OnFailProvisionalLoad(FrameType frame, ErrorType error) {
-  if (frame == FRAME_SUB)
-    return;
-
-  load_state_ = LOAD_FAILED;
-
-  if (load_type_ == PAGE_NORMAL) {
-    error_type_ = error;
-    if (error_type_ == ERROR_DNS)
-      SetDnsErrorPageState(DNS_ERROR_PAGE_PENDING);
-  }
-}
-
-void NetErrorTracker::OnFinishLoad(FrameType frame) {
-  if (frame == FRAME_SUB)
-    return;
-
-  load_state_ = LOAD_FINISHED;
-
-  if (load_type_ == PAGE_ERROR && error_type_ == ERROR_DNS)
-    SetDnsErrorPageState(DNS_ERROR_PAGE_LOADED);
-}
-
-void NetErrorTracker::SetDnsErrorPageState(DnsErrorPageState state) {
-  if (state == dns_error_page_state_)
-    return;
-
-  dns_error_page_state_ = state;
-  callback_.Run(state);
-}