Provide WebContents::CreateParams to tab helpers.

extensions/browser/guest_view/web_view/web_view_guest.cc

 // Copyright 2014 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 "extensions/browser/guest_view/web_view/web_view_guest.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 1321 matching lines @@
     return web_contents();
   }
 
   // This code path is taken if Ctrl+Click, middle click or any of the
   // keyboard/mouse combinations are used to open a link in a new tab/window.
   // This code path is also taken on client-side redirects from about:blank.
   CreateNewGuestWebViewWindow(params);
   return nullptr;
 }
 
-void WebViewGuest::WebContentsCreated(WebContents* source_contents,
-                                      int opener_render_process_id,
-                                      int opener_render_frame_id,
-                                      const std::string& frame_name,
-                                      const GURL& target_url,
-                                      WebContents* new_contents) {
+void WebViewGuest::WebContentsCreated(
+    WebContents* source_contents,
+    int opener_render_process_id,
+    int opener_render_frame_id,
+    const std::string& frame_name,
+    const GURL& target_url,
+    WebContents* new_contents,
+    const base::Optional<content::WebContents::CreateParams>& create_params) {
   auto* guest = WebViewGuest::FromWebContents(new_contents);
   CHECK(guest);
   guest->SetOpener(this);
   guest->name_ = frame_name;
   pending_new_windows_.insert(
       std::make_pair(guest, NewWindowInfo(target_url, frame_name)));
 }
 
 void WebViewGuest::EnterFullscreenModeForTab(WebContents* web_contents,
                                              const GURL& origin) {
@@ skipping 172 matching lines @@
     auto args = base::MakeUnique<base::DictionaryValue>();
     DispatchEventToView(base::MakeUnique<GuestViewEvent>(
         webview::kEventExitFullscreen, std::move(args)));
   }
   // Since we changed fullscreen state, sending a Resize message ensures that
   // renderer/ sees the change.
   web_contents()->GetRenderViewHost()->GetWidget()->WasResized();
 }
 
 }  // namespace extensions