Make UnsafeResource hold a WebContents getter instead of RenderFrame ids

chrome/browser/renderer_host/safe_browsing_resource_throttle.h

Index: chrome/browser/renderer_host/safe_browsing_resource_throttle.h
diff --git a/chrome/browser/renderer_host/safe_browsing_resource_throttle.h b/chrome/browser/renderer_host/safe_browsing_resource_throttle.h
index 3589010a6bb1032c09ee758f2d0218602473f956..3145b39850aa2d04e2eadff99417caafccf514dc 100644
--- a/chrome/browser/renderer_host/safe_browsing_resource_throttle.h
+++ b/chrome/browser/renderer_host/safe_browsing_resource_throttle.h
@@ -131,7 +131,9 @@ class SafeBrowsingResourceThrottle
   static void StartDisplayingBlockingPage(
       const base::WeakPtr<SafeBrowsingResourceThrottle>& throttle,
       scoped_refptr<safe_browsing::SafeBrowsingUIManager> ui_manager,
-      const safe_browsing::SafeBrowsingUIManager::UnsafeResource& resource);
+      const safe_browsing::SafeBrowsingUIManager::UnsafeResource& resource,
+      int child_id,
+      int render_frame_id);
 
   // Called on the IO thread if the request turned out to be for a prerendered
   // page.