Move most of the remaining users of WebContentsObserver::tab_contents() to use web_contents().

chrome/browser/ui/alternate_error_tab_observer.cc

 // Copyright (c) 2011 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/alternate_error_tab_observer.h"
 
 #include "chrome/browser/google/google_util.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "content/browser/renderer_host/render_view_host.h"
-#include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/browser/notification_service.h"
+#include "content/public/browser/web_contents.h"
+
+using content::WebContents;
 
 AlternateErrorPageTabObserver::AlternateErrorPageTabObserver(
-    TabContentsWrapper* wrapper)
-        : content::WebContentsObserver(wrapper->tab_contents()),
-          wrapper_(wrapper) {
-  PrefService* prefs = wrapper_->profile()->GetPrefs();
+    WebContents* web_contents)
+    : content::WebContentsObserver(web_contents) {
+  PrefService* prefs = GetProfile()->GetPrefs();
   if (prefs) {
     pref_change_registrar_.Init(prefs);
     pref_change_registrar_.Add(prefs::kAlternateErrorPagesEnabled, this);
   }
 
   registrar_.Add(this, chrome::NOTIFICATION_GOOGLE_URL_UPDATED,
                  content::NotificationService::AllSources());
 }
 
 AlternateErrorPageTabObserver::~AlternateErrorPageTabObserver() {
 }
 
 // static
 void AlternateErrorPageTabObserver::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterBooleanPref(prefs::kAlternateErrorPagesEnabled,
                              true,
                              PrefService::SYNCABLE_PREF);
 }
 
+Profile* AlternateErrorPageTabObserver::GetProfile() const {
+ return Profile::FromBrowserContext(web_contents()->GetBrowserContext());
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebContentsObserver overrides
 
 void AlternateErrorPageTabObserver::RenderViewCreated(
     RenderViewHost* render_view_host) {
   UpdateAlternateErrorPageURL(render_view_host);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // content::NotificationObserver overrides
 
 void AlternateErrorPageTabObserver::Observe(int type,
                             const content::NotificationSource& source,
                             const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_GOOGLE_URL_UPDATED:
-      UpdateAlternateErrorPageURL(tab_contents()->GetRenderViewHost());
+      UpdateAlternateErrorPageURL(web_contents()->GetRenderViewHost());
       break;
     case chrome::NOTIFICATION_PREF_CHANGED: {
       std::string* pref_name = content::Details<std::string>(details).ptr();
       DCHECK(content::Source<PrefService>(source).ptr() ==
-             wrapper_->profile()->GetPrefs());
+             GetProfile()->GetPrefs());
       if (*pref_name == prefs::kAlternateErrorPagesEnabled) {
-        UpdateAlternateErrorPageURL(tab_contents()->GetRenderViewHost());
+        UpdateAlternateErrorPageURL(web_contents()->GetRenderViewHost());
       } else {
         NOTREACHED() << "unexpected pref change notification" << *pref_name;
       }
       break;
     }
     default:
       NOTREACHED();
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Internal helpers
 
 GURL AlternateErrorPageTabObserver::GetAlternateErrorPageURL() const {
   GURL url;
   // Disable alternate error pages when in Incognito mode.
-  if (wrapper_->profile()->IsOffTheRecord())
+  if (GetProfile()->IsOffTheRecord())
     return url;
 
-  PrefService* prefs = wrapper_->profile()->GetPrefs();
+  PrefService* prefs = GetProfile()->GetPrefs();
   if (prefs->GetBoolean(prefs::kAlternateErrorPagesEnabled)) {
     url = google_util::AppendGoogleLocaleParam(
         GURL(google_util::kLinkDoctorBaseURL));
     url = google_util::AppendGoogleTLDParam(url);
   }
   return url;
 }
 
 void AlternateErrorPageTabObserver::UpdateAlternateErrorPageURL(
     RenderViewHost* rvh) {
   rvh->SetAltErrorPageURL(GetAlternateErrorPageURL());
 }