Update suppression for IPC::SyncChannel::CreateSyncMessageFilter leak.
Update suppression for IPC::SyncChannel::CreateSyncMessageFilter leak.

Commit 7cfec02ca8fe958b480bab2a92c6914d05d76f29 changed the signature
for content::GpuChannelHost::Create, breaking the old suppression entry.

BUG=345432
TBR=jbauman@chromium.org

Review URL: https://codereview.chromium.org/1316753004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#347792}

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