Expose GetLastCommitedOrigin() on WebContents and use it in about:blank

chrome/browser/ui/website_settings/website_settings.cc

 // Copyright (c) 2012 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/website_settings/website_settings.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 342 matching lines @@
     const SecurityStateModel::SecurityInfo& security_info) {
   bool isChromeUINativeScheme = false;
 #if defined(OS_ANDROID)
   isChromeUINativeScheme = url.SchemeIs(chrome::kChromeUINativeScheme);
 #endif
 
   if (url.SchemeIs(url::kAboutScheme)) {
     // All about: URLs except about:blank are redirected.
     DCHECK_EQ(url::kAboutBlankURL, url.spec());
     site_identity_status_ = SITE_IDENTITY_STATUS_NO_CERT;
+    url::Origin origin = web_contents_->GetLastCommittedOrigin();
     site_identity_details_ =
-        l10n_util::GetStringUTF16(IDS_PAGE_INFO_SECURITY_TAB_INSECURE_IDENTITY);
+        origin.unique() ? l10n_util::GetStringUTF16(
+                              IDS_PAGE_INFO_SECURITY_TAB_INSECURE_IDENTITY)
+                        : l10n_util::GetStringFUTF16(
+                              IDS_PAGE_INFO_SECURITY_TAB_INHERITED_ORIGIN,
+                              UTF8ToUTF16(origin.host()));
     site_connection_status_ = SITE_CONNECTION_STATUS_UNENCRYPTED;
     site_connection_details_ = l10n_util::GetStringFUTF16(
         IDS_PAGE_INFO_SECURITY_TAB_NOT_ENCRYPTED_CONNECTION_TEXT,
         UTF8ToUTF16(url.spec()));
     return;
   }
 
   if (url.SchemeIs(content::kChromeUIScheme) || isChromeUINativeScheme) {
     site_identity_status_ = SITE_IDENTITY_STATUS_INTERNAL_PAGE;
     site_identity_details_ =
@@ skipping 363 matching lines @@
   info.connection_status = site_connection_status_;
   info.connection_status_description =
       UTF16ToUTF8(site_connection_details_);
   info.identity_status = site_identity_status_;
   info.identity_status_description =
       UTF16ToUTF8(site_identity_details_);
   info.cert_id = cert_id_;
   info.show_ssl_decision_revoke_button = show_ssl_decision_revoke_button_;
   ui_->SetIdentityInfo(info);
 }