Bug 1417976 - Part 2: Include DocShell IDs to marker payloads r=mstange

MozReview-Commit-ID: AML1ESUnFlu

Depends on D4914

Differential Revision: https://phabricator.services.mozilla.com/D4915

docshell/base/nsDocShell.cpp

@@ -13782,6 +13782,17 @@ nsDocShell::SetOriginAttributes(JS::Handle<JS::Value> aOriginAttributes,
   return SetOriginAttributes(attrs);
 }
 
+NS_IMETHODIMP
+nsDocShell::GetOSHEId(uint32_t* aSHEntryId)
+{
+  if (mOSHE) {
+    mOSHE->GetID(aSHEntryId);
+    return NS_OK;
+  } else {
+    return NS_ERROR_FAILURE;
+  }
+}
+
 NS_IMETHODIMP
 nsDocShell::GetAsyncPanZoomEnabled(bool* aOut)
 {