Remember zoom on a per-host basis....

chrome/browser/browser_prefs.cc

Index: chrome/browser/browser_prefs.cc
===================================================================
--- chrome/browser/browser_prefs.cc	(revision 33695)
+++ chrome/browser/browser_prefs.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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.
 
@@ -16,6 +16,7 @@
 #include "chrome/browser/external_protocol_handler.h"
 #include "chrome/browser/form_field_history_manager.h"
 #include "chrome/browser/google_url_tracker.h"
+#include "chrome/browser/host_zoom_map.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/net/dns_global.h"
 #include "chrome/browser/page_info_model.h"
@@ -94,6 +95,7 @@
   ExtensionsUI::RegisterUserPrefs(user_prefs);
   NewTabUI::RegisterUserPrefs(user_prefs);
   BlockedPopupContainer::RegisterUserPrefs(user_prefs);
+  HostZoomMap::RegisterUserPrefs(user_prefs);
   DevToolsManager::RegisterUserPrefs(user_prefs);
 #if defined(TOOLKIT_GTK)
   BrowserWindowGtk::RegisterUserPrefs(user_prefs);