Method that will be called after attempted execution of a DevTools
protocol function. |browser| is the originating browser instance.
|message_id| is the "id" value that identifies the originating function
call message. If the function succeeded |success| will be true (1) and
|result| will be the UTF8-encoded JSON "result" dictionary value (which
may be NULL). If the function failed |success| will be false (0) and
|result| will be the UTF8-encoded JSON "error" dictionary value. |result|
is only valid for the scope of this callback and should be copied if
necessary. See the OnDevToolsMessage documentation for additional details
on |result| contents.
Method that will be called after attempted execution of a DevTools protocol function. |browser| is the originating browser instance. |message_id| is the "id" value that identifies the originating function call message. If the function succeeded |success| will be true (1) and |result| will be the UTF8-encoded JSON "result" dictionary value (which may be NULL). If the function failed |success| will be false (0) and |result| will be the UTF8-encoded JSON "error" dictionary value. |result| is only valid for the scope of this callback and should be copied if necessary. See the OnDevToolsMessage documentation for additional details on |result| contents.