When running the following browser tests using "--enable-features=NetworkService" flag:
ChromeSitePerProcessPDFTest.EmbeddedPDFInsideCrossOriginFrame
PDFExtensionTest.EnsureCrossOriginRepliesBlocked
PDFExtensionTest.PostMessageForZeroSizedEmbed
PDFExtensionTest.TabTitleWithEmbeddedPdf
Line:
create_params.SetString(mime_handler_view::kViewId, view_id);
at
ExtensionsGuestViewMessageFilter::OnCreateMimeHandlerViewGuest()
fails at:
//base/values.cc(147)
Check failed: IsStringUTF8(string_value_).
Further debugging shows that the |view_id| is invalid.
Comment 1 by juncai@chromium.org
, Oct 27 2017