Run benchmark for NaCl based Chrome extension

[Amol Wagh]

Hello All,

I am planning to run the rendering benchmark for the NaCl based Chrome extension. The chrome extension is used to render and edit the Office formatted files in Chrome.
I added the page (story) in ./tools/perf/page_sets/rendering folder about rendering the Office file using the extension.

On running the benchmark, the extension fails to open the document. I suspect it's due to NaCl related error. I think by default NaCl is disabled when Chrome is launched to run the benchmark.
So, to enable the NaCl and to load the extension before running the performance test, following arguments are passed to the browser using `extra_browser_args` in the test.

extra_browser_args=['--enable-nacl', '--load-extension=<path/to/extension>']

However, even after passing the above arguments, NaCl based extension fails to open the file. Please note that the Wasm version of the same extension works though.
Can someone please help/guide me about running the benchmark for NaCl based extensions?

Regards,
Amol

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