Move alternate_nav_infobar_delegate.* from c/b/infobars/ to c/b/ui/omnibox.

chrome/browser/alternate_nav_url_fetcher.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/alternate_nav_url_fetcher.h"
-
-#include "chrome/browser/api/infobars/infobar_service.h"
-#include "chrome/browser/infobars/alternate_nav_infobar_delegate.h"
-#include "chrome/browser/intranet_redirect_detector.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/chrome_notification_types.h"
-#include "content/public/browser/navigation_controller.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/web_contents.h"
-#include "net/base/load_flags.h"
-#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
-#include "net/url_request/url_fetcher.h"
-#include "net/url_request/url_request.h"
-
-using content::NavigationController;
-
-AlternateNavURLFetcher::AlternateNavURLFetcher(
-    const GURL& alternate_nav_url)
-    : alternate_nav_url_(alternate_nav_url),
-      controller_(NULL),
-      state_(NOT_STARTED),
-      navigated_to_entry_(false) {
-  registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
-                 content::NotificationService::AllSources());
-  registrar_.Add(this, chrome::NOTIFICATION_INSTANT_COMMITTED,
-                 content::NotificationService::AllSources());
-}
-
-AlternateNavURLFetcher::~AlternateNavURLFetcher() {
-}
-
-void AlternateNavURLFetcher::Observe(
-    int type,
-    const content::NotificationSource& source,
-    const content::NotificationDetails& details) {
-  switch (type) {
-    case content::NOTIFICATION_NAV_ENTRY_PENDING: {
-      // If we've already received a notification for the same controller, we
-      // should delete ourselves as that indicates that the page is being
-      // re-loaded so this instance is now stale.
-      NavigationController* controller =
-          content::Source<NavigationController>(source).ptr();
-      if (controller_ == controller) {
-        delete this;
-      } else if (!controller_) {
-        // Start listening for the commit notification.
-        DCHECK(controller->GetPendingEntry());
-        registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
-                       content::Source<NavigationController>(
-                          controller));
-        StartFetch(controller);
-      }
-      break;
-    }
-
-    case chrome::NOTIFICATION_INSTANT_COMMITTED: {
-      // See above.
-      NavigationController* controller =
-          &content::Source<content::WebContents>(source)->GetController();
-      if (controller_ == controller) {
-        delete this;
-      } else if (!controller_) {
-        navigated_to_entry_ = true;
-        StartFetch(controller);
-      }
-      break;
-    }
-
-    case content::NOTIFICATION_NAV_ENTRY_COMMITTED:
-      // The page was navigated, we can show the infobar now if necessary.
-      registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
-                        content::Source<NavigationController>(controller_));
-      navigated_to_entry_ = true;
-      ShowInfobarIfPossible();
-      // WARNING: |this| may be deleted!
-      break;
-
-    case content::NOTIFICATION_WEB_CONTENTS_DESTROYED:
-      // We have been closed. In order to prevent the URLFetcher from trying to
-      // access the controller that will be invalid, we delete ourselves.
-      // This deletes the URLFetcher and insures its callback won't be called.
-      delete this;
-      break;
-
-    default:
-      NOTREACHED();
-  }
-}
-
-void AlternateNavURLFetcher::OnURLFetchComplete(
-    const net::URLFetcher* source) {
-  DCHECK_EQ(fetcher_.get(), source);
-  SetStatusFromURLFetch(
-      source->GetURL(), source->GetStatus(), source->GetResponseCode());
-  ShowInfobarIfPossible();
-  // WARNING: |this| may be deleted!
-}
-
-void AlternateNavURLFetcher::StartFetch(NavigationController* controller) {
-  controller_ = controller;
-  content::WebContents* web_contents = controller_->GetWebContents();
-  registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
-                 content::Source<content::WebContents>(web_contents));
-
-  DCHECK_EQ(NOT_STARTED, state_);
-  state_ = IN_PROGRESS;
-  fetcher_.reset(net::URLFetcher::Create(GURL(alternate_nav_url_),
-                                         net::URLFetcher::HEAD, this));
-  fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES);
-  fetcher_->SetRequestContext(
-      controller_->GetBrowserContext()->GetRequestContext());
-  fetcher_->SetStopOnRedirect(true);
-  fetcher_->Start();
-}
-
-void AlternateNavURLFetcher::SetStatusFromURLFetch(
-    const GURL& url,
-    const net::URLRequestStatus& status,
-    int response_code) {
-  if (status.is_success()) {
-    // HTTP 2xx, 401, and 407 all indicate that the target address exists.
-    state_ = (((response_code / 100) == 2) || (response_code == 401) ||
-        (response_code == 407)) ? SUCCEEDED : FAILED;
-  } else {
-    // If we got HTTP 3xx, we'll have auto-canceled; treat this as evidence the
-    // target address exists as long as we're not redirected to a common
-    // location every time, lest we annoy the user with infobars on everything
-    // they type.  See comments on IntranetRedirectDetector.
-    state_ = ((status.status() == net::URLRequestStatus::CANCELED) &&
-      ((response_code / 100) == 3) &&
-      !net::RegistryControlledDomainService::SameDomainOrHost(url,
-          IntranetRedirectDetector::RedirectOrigin())) ? SUCCEEDED : FAILED;
-  }
-}
-
-void AlternateNavURLFetcher::ShowInfobarIfPossible() {
-  if (navigated_to_entry_ && (state_ == SUCCEEDED)) {
-    AlternateNavInfoBarDelegate::Create(
-        InfoBarService::FromWebContents(controller_->GetWebContents()),
-        alternate_nav_url_);
-  } else if (state_ != FAILED) {
-    return;
-  }
-  delete this;
-}