skia: Rename perf flag

Change-Id: If9f0976d9ba2ec22c4d9f70f203e033662ed0580
Merge remote-tracking branch 'cm/cm-11.0' into TRST
Revert "skia: Rename perf flag"

This reverts commit 35ab79f2120eb956cc0a4bfde11580546b2b5127.