Fix Crash in IsInternalPluginAvailableForMimeType
by removing incorrect vector sizing

Tbr: jam@chromium.org
Bug: 784517
Change-Id: I12d2cd40e4aec712827b02346270c36bc4711797
Reviewed-on: https://chromium-review.googlesource.com/767599
Reviewed-by: Sam McNally <sammc@chromium.org>
Commit-Queue: Nicholas Verne <nverne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516122}
1 file changed