PlzNavigate: implement process reuse for ServiceWorkers

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index 440cd7432d5cc9e28697382869c24b4f90c5a573..e1c4d6642b789e78130188f46a303ff9b9545cc2 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -264,9 +264,7 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // Allows FrameTreeNode::SetCurrentURL to update this frame's last committed
   // URL.  Do not call this directly, since we rely on SetCurrentURL to track
   // whether a real load has committed or not.
-  void set_last_committed_url(const GURL& url) {
-    last_committed_url_ = url;
-  }
+  void SetLastCommittedUrl(const GURL& url);
 
   // The most recent non-net-error URL to commit in this frame.  In almost all
   // cases, use GetLastCommittedURL instead.