PlzNavigate: properly set the initiator of the navigation

content/renderer/render_frame_impl.cc

 // Copyright 2013 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 "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 6125 matching lines @@
             GetFetchCredentialsModeForWebURLRequest(info.urlRequest));
   DCHECK(GetFetchRedirectModeForWebURLRequest(info.urlRequest) ==
          FetchRedirectMode::MANUAL_MODE);
   DCHECK(frame_->parent() ||
          GetRequestContextFrameTypeForWebURLRequest(info.urlRequest) ==
              REQUEST_CONTEXT_FRAME_TYPE_TOP_LEVEL);
   DCHECK(!frame_->parent() ||
          GetRequestContextFrameTypeForWebURLRequest(info.urlRequest) ==
              REQUEST_CONTEXT_FRAME_TYPE_NESTED);
 
+  base::Optional<url::Origin> initiator =
+      info.urlRequest.requestorOrigin().isNull()
+          ? base::Optional<url::Origin>()
+          : base::Optional<url::Origin>(info.urlRequest.requestorOrigin());
   BeginNavigationParams begin_navigation_params(
       GetWebURLRequestHeaders(info.urlRequest),
       GetLoadFlagsForWebURLRequest(info.urlRequest),
       info.urlRequest.skipServiceWorker() !=
           blink::WebURLRequest::SkipServiceWorker::None,
-      GetRequestContextTypeForWebURLRequest(info.urlRequest));
+      GetRequestContextTypeForWebURLRequest(info.urlRequest), initiator);
 
   if (!info.form.isNull()) {
     WebSearchableFormData web_searchable_form_data(info.form);
     begin_navigation_params.searchable_form_url =
         web_searchable_form_data.url();
     begin_navigation_params.searchable_form_encoding =
         web_searchable_form_data.encoding().utf8();
   }
 
   Send(new FrameHostMsg_BeginNavigation(
@@ skipping 534 matching lines @@
   // event target. Potentially a Pepper plugin will receive the event.
   // In order to tell whether a plugin gets the last mouse event and which it
   // is, we set |pepper_last_mouse_event_target_| to null here. If a plugin gets
   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
   // |pepper_last_mouse_event_target_|.
   pepper_last_mouse_event_target_ = nullptr;
 #endif
 }
 
 }  // namespace content