Allow zooming error pages.

content/browser/frame_host/navigation_controller_impl.cc

 // Copyright 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 "content/browser/frame_host/navigation_controller_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"  // Temporary
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "cc/base/switches.h"
 #include "content/browser/browser_url_handler_impl.h"
 #include "content/browser/dom_storage/dom_storage_context_wrapper.h"
 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
 #include "content/browser/frame_host/debug_urls.h"
 #include "content/browser/frame_host/interstitial_page_impl.h"
 #include "content/browser/frame_host/navigation_entry_impl.h"
 #include "content/browser/frame_host/navigation_entry_screenshot_manager.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"  // Temporary
 #include "content/browser/site_instance_impl.h"
 #include "content/common/frame_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/content_browser_client.h"
+#include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/invalidate_type.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_constants.h"
@@ skipping 1013 matching lines @@
         &url, browser_context_, &needs_update);
     new_entry->set_update_virtual_url_with_url(needs_update);
 
     // When navigating to a new page, give the browser URL handler a chance to
     // update the virtual URL based on the new URL. For example, this is needed
     // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
     // the URL.
     update_virtual_url = needs_update;
   }
 
-  if (params.url_is_unreachable)
+  if (params.url_is_unreachable) {
     new_entry->set_page_type(PAGE_TYPE_ERROR);
+    HostZoomMap::SendErrorPageZoomLevelRefresh(GetWebContents());

[Charlie Reis, 2014/10/28 16:36:21]

This doesn't seem to belong here, since zoom is unrelated to the rest of this
code.  ZoomController is a WebContentsObserver, so perhaps it belongs there?

[wjmaclean, 2014/10/28 17:37:04]

Done.

+  }
   new_entry->SetURL(params.url);
   if (update_virtual_url)
     UpdateVirtualURLToURL(new_entry, params.url);
   new_entry->SetReferrer(params.referrer);
   new_entry->SetPageID(params.page_id);
   new_entry->SetTransitionType(params.transition);
   new_entry->set_site_instance(
       static_cast<SiteInstanceImpl*>(rfh->GetSiteInstance()));
   new_entry->SetHasPostData(params.is_post);
   new_entry->SetPostID(params.post_id);
@@ skipping 715 matching lines @@
     }
   }
 }
 
 void NavigationControllerImpl::SetGetTimestampCallbackForTest(
     const base::Callback<base::Time()>& get_timestamp_callback) {
   get_timestamp_callback_ = get_timestamp_callback;
 }
 
 }  // namespace content