cc: Correct task graph edges in tile_task_worker_pool_perf_tests.cc.

The task is edge is (task <-- dependent). This patch corrects edges in
tile_task_worker_pool_perf_tests.cc in BuildTileTaskGraph.

BUG=607818
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review-Url: https://codereview.chromium.org/1928273002
Cr-Commit-Position: refs/heads/master@{#390613}
1 file changed