f8afe54

[WebDriver][BiDi] Fix error forwarding for errors with detail string
https://bugs.webkit.org/show_bug.cgi?id=294824

Reviewed by NOBODY (OOPS!).

Ensure we check if we're getting an error message with a detail string,
using it for the "message" field in the outgoing BiDi error message.

This avoids getting generic "Unknown Error" with messages
"InvalidParameter;The parameter foo is invalid" if using the
"...AND_DETAILS" macros.

* Source/WebKit/UIProcess/Automation/WebDriverBidiProcessor.cpp:
(WebKit::WebDriverBidiProcessor::sendBidiMessage):

f8afe54

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