Merge 262846 "Revert 255617, due to it not tracking use of the link doctor page."

chrome/browser/ui/navigation_correction_tab_observer.cc

-// Copyright (c) 2012 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/ui/navigation_correction_tab_observer.h"
-
-#include "base/prefs/pref_service.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/google/google_util.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/pref_names.h"
-#include "chrome/common/render_messages.h"
-#include "components/user_prefs/pref_registry_syncable.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/render_frame_host.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/web_contents.h"
-#include "google_apis/google_api_keys.h"
-
-using content::RenderFrameHost;
-using content::RenderViewHost;
-using content::WebContents;
-
-DEFINE_WEB_CONTENTS_USER_DATA_KEY(NavigationCorrectionTabObserver);
-
-NavigationCorrectionTabObserver::NavigationCorrectionTabObserver(
-    WebContents* web_contents)
-    : content::WebContentsObserver(web_contents),
-      profile_(Profile::FromBrowserContext(web_contents->GetBrowserContext())) {
-  PrefService* prefs = profile_->GetPrefs();
-  if (prefs) {
-    pref_change_registrar_.Init(prefs);
-    pref_change_registrar_.Add(
-        prefs::kAlternateErrorPagesEnabled,
-        base::Bind(&NavigationCorrectionTabObserver::OnEnabledChanged,
-                   base::Unretained(this)));
-  }
-
-  registrar_.Add(this, chrome::NOTIFICATION_GOOGLE_URL_UPDATED,
-                 content::Source<Profile>(profile_->GetOriginalProfile()));
-}
-
-NavigationCorrectionTabObserver::~NavigationCorrectionTabObserver() {
-}
-
-// static
-void NavigationCorrectionTabObserver::RegisterProfilePrefs(
-    user_prefs::PrefRegistrySyncable* prefs) {
-  prefs->RegisterBooleanPref(prefs::kAlternateErrorPagesEnabled,
-                             true,
-                             user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// WebContentsObserver overrides
-
-void NavigationCorrectionTabObserver::RenderViewCreated(
-    RenderViewHost* render_view_host) {
-  UpdateNavigationCorrectionInfo(render_view_host);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// content::NotificationObserver overrides
-
-void NavigationCorrectionTabObserver::Observe(
-    int type,
-    const content::NotificationSource& source,
-    const content::NotificationDetails& details) {
-  DCHECK_EQ(chrome::NOTIFICATION_GOOGLE_URL_UPDATED, type);
-  UpdateNavigationCorrectionInfo(web_contents()->GetRenderViewHost());
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// Internal helpers
-
-GURL NavigationCorrectionTabObserver::GetNavigationCorrectionURL() const {
-  // Disable navigation corrections when the preference is disabled or when in
-  // Incognito mode.
-  if (!profile_->GetPrefs()->GetBoolean(prefs::kAlternateErrorPagesEnabled) ||
-      profile_->IsOffTheRecord()) {
-    return GURL();
-  }
-
-  return google_util::LinkDoctorBaseURL();
-}
-
-void NavigationCorrectionTabObserver::OnEnabledChanged() {
-  UpdateNavigationCorrectionInfo(web_contents()->GetRenderViewHost());
-}
-
-void NavigationCorrectionTabObserver::UpdateNavigationCorrectionInfo(
-    RenderViewHost* rvh) {
-  RenderFrameHost* rfh = rvh->GetMainFrame();
-  rfh->Send(new ChromeViewMsg_SetNavigationCorrectionInfo(
-      rfh->GetRoutingID(), GetNavigationCorrectionURL(),
-      google_util::GetGoogleLocale(),
-      google_util::GetGoogleCountryCode(profile_), google_apis::GetAPIKey(),
-      google_util::GetGoogleSearchURL(profile_)));
-}