Fix in-document navigations breaking icons from Web Manifests

components/favicon/content/content_favicon_driver.cc

 // Copyright 2015 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 "components/favicon/content/content_favicon_driver.h"
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "components/favicon/content/favicon_url_util.h"
 #include "components/favicon/core/favicon_service.h"
@@ skipping 192 matching lines @@
                        manifest_url_);
   }
 }
 
 void ContentFaviconDriver::DidStartNavigation(
     content::NavigationHandle* navigation_handle) {
   if (!navigation_handle->IsInMainFrame())
     return;
 
   favicon_urls_.reset();
-  manifest_url_ = GURL();
+
+  if (!navigation_handle->IsSameDocument())
+    manifest_url_ = GURL();
 
   content::ReloadType reload_type = navigation_handle->GetReloadType();
   if (reload_type == content::ReloadType::NONE || IsOffTheRecord())
     return;
 
   bypass_cache_page_url_ = navigation_handle->GetURL();
   SetFaviconOutOfDateForPage(
       navigation_handle->GetURL(),
       reload_type == content::ReloadType::BYPASSING_CACHE);
 }
@@ skipping 15 matching lines @@
   // redownloaded.
   GURL url = navigation_handle->GetURL();
   if (url != bypass_cache_page_url_)
     bypass_cache_page_url_ = GURL();
 
   // Get the favicon, either from history or request it from the net.
   FetchFavicon(url);
 }
 
 }  // namespace favicon