webmdshow: Fix EoLs (CRLF -> LF) in VP9 Decoder Filter.

Change-Id: I1fab99a3cbafc2329c2415700c8fb23fc1dd8304
webmdshow: Add .clang-format

Copied from libwebm.

Change-Id: Ia43617e622e5883134305caaa570dd93fb344f00
Merge "webmdshow: Add .clang-format"