ABANDONED CL: Make WebContents::Get(Original)Opener return RenderFrameHost* (not WebContents*).

chrome/browser/content_settings/mixed_content_settings_tab_helper.cc

Index: chrome/browser/content_settings/mixed_content_settings_tab_helper.cc
diff --git a/chrome/browser/content_settings/mixed_content_settings_tab_helper.cc b/chrome/browser/content_settings/mixed_content_settings_tab_helper.cc
index 0a6e6ff3da0beb642d060997750176e02e456a6e..a6c8e9c2b7ce238411dbe0a4ac01d043279062cd 100644
--- a/chrome/browser/content_settings/mixed_content_settings_tab_helper.cc
+++ b/chrome/browser/content_settings/mixed_content_settings_tab_helper.cc
@@ -23,7 +23,8 @@ MixedContentSettingsTabHelper::MixedContentSettingsTabHelper(WebContents* tab)
   // because in Chrome these settings are maintained at the tab level instead of
   // at the frame level as Blink does.
   MixedContentSettingsTabHelper* opener_settings =
-      MixedContentSettingsTabHelper::FromWebContents(tab->GetOpener());
+      MixedContentSettingsTabHelper::FromWebContents(
+          WebContents::FromRenderFrameHost(tab->GetOpener()));
   if (opener_settings) {
     insecure_content_site_instance_ =
         opener_settings->insecure_content_site_instance_;