Worker: Remove unused WebWorkerFetchContextImpl::origin_url_

This field was introduced by
https://chromium-review.googlesource.com/c/chromium/src/+/727826/

... and became unnecessary by
https://chromium-review.googlesource.com/c/chromium/src/+/823374/

Bug: n/a
Change-Id: Ib0bb149d9480cb9981135b22b64ff9cb1094cd47
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2132901
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#756578}

content/renderer/loader/web_worker_fetch_context_impl.cc

@@ -574,10 +574,6 @@ void WebWorkerFetchContextImpl::set_top_frame_origin(
   top_frame_origin_ = top_frame_origin;
 }
 
-void WebWorkerFetchContextImpl::set_origin_url(const GURL& origin_url) {
-  origin_url_ = origin_url;
-}
-
 void WebWorkerFetchContextImpl::set_client_id(const std::string& client_id) {
   client_id_ = client_id;
 }

content/renderer/loader/web_worker_fetch_context_impl.h

@@ -162,9 +162,6 @@ class CONTENT_EXPORT WebWorkerFetchContextImpl
   void set_site_for_cookies(const net::SiteForCookies& site_for_cookies);
   void set_top_frame_origin(const blink::WebSecurityOrigin& top_frame_origin);
 
-  // Sets whether the worker context is a secure context.
-  // https://w3c.github.io/webappsec-secure-contexts/
-  void set_origin_url(const GURL& origin_url);
   void set_client_id(const std::string& client_id);
 
   // PlzWorker with off-the-main-thread worker script fetch:
@@ -334,7 +331,6 @@ class CONTENT_EXPORT WebWorkerFetchContextImpl
   scoped_refptr<FrameRequestBlocker> frame_request_blocker_;
   net::SiteForCookies site_for_cookies_;
   base::Optional<url::Origin> top_frame_origin_;
-  GURL origin_url_;
 
   blink::mojom::RendererPreferences renderer_preferences_;
 

content/renderer/render_frame_impl.cc

@@ -3810,8 +3810,6 @@ RenderFrameImpl::CreateWorkerFetchContext() {
       frame_->GetDocument().SiteForCookies());
   worker_fetch_context->set_top_frame_origin(
       frame_->GetDocument().TopFrameOrigin());
-  worker_fetch_context->set_origin_url(
-      GURL(frame_->GetDocument().Url()).GetOrigin());
 
   for (auto& observer : observers_)
     observer.WillCreateWorkerFetchContext(worker_fetch_context.get());
@@ -3840,8 +3838,6 @@ RenderFrameImpl::CreateWorkerFetchContextForPlzDedicatedWorker(
       frame_->GetDocument().SiteForCookies());
   worker_fetch_context->set_top_frame_origin(
       frame_->GetDocument().TopFrameOrigin());
-  worker_fetch_context->set_origin_url(
-      GURL(frame_->GetDocument().Url()).GetOrigin());
 
   for (auto& observer : observers_)
     observer.WillCreateWorkerFetchContext(worker_fetch_context.get());

content/renderer/worker/embedded_shared_worker_stub.cc

@@ -185,7 +185,6 @@ EmbeddedSharedWorkerStub::CreateWorkerFetchContext() {
   // https://tools.ietf.org/html/draft-ietf-httpbis-cookie-same-site-07#section-2.1.2
   worker_fetch_context->set_site_for_cookies(
       net::SiteForCookies::FromUrl(url_));
-  worker_fetch_context->set_origin_url(url_.GetOrigin());
 
   DCHECK(response_override_);
   worker_fetch_context->SetResponseOverrideForMainScript(