Revert of Remove obsolete StoragePartition check from old iframe signin path.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index b42ef9def2a09caba2702c04b4d6b554365502c5..2a24e8aef169b59276c42025f0ad8716af3ea45d 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -1094,6 +1094,16 @@
   additional_schemes->push_back(dom_distiller::kDomDistillerScheme);
 }
 
+void ChromeContentBrowserClient::GetAdditionalWebUIHostsToIgnoreParititionCheck(
+    std::vector<std::string>* hosts) {
+  hosts->push_back(chrome::kChromeUIExtensionIconHost);
+  hosts->push_back(chrome::kChromeUIFaviconHost);
+  hosts->push_back(chrome::kChromeUIThemeHost);
+  hosts->push_back(chrome::kChromeUIThumbnailHost);
+  hosts->push_back(chrome::kChromeUIThumbnailHost2);
+  hosts->push_back(chrome::kChromeUIThumbnailListHost);
+}
+
 bool ChromeContentBrowserClient::LogWebUIUrl(const GURL& web_ui_url) const {
   return webui::LogWebUIUrl(web_ui_url);
 }