commit 5a94b8b2e63a4307b7be5eccc698b37c97fe9edc
author alexclarke <alexclarke@chromium.org> Fri Feb 19 16:20:45 2016
committer Commit bot <commit-bot@chromium.org> Fri Feb 19 16:22:06 2016
tree 8f85c7d175f04042018b4fc867f191d31ada5f0f
parent aa83ef86ff3c21a5d94519b616764aaacbb755d4

Refactor ScrollAnimatorMac to use CancellableTaskFactory

Refactor ScrollAnimatorMac to use CancellableTaskFactory because the
unittests trigger ScrollAnimatorMac::sendContentAreaScrolledSoon which
causes an assert (TestingPlatformMockWebTaskRunner::
monotonicallyIncreasingVirtualTimeSeconds is called) to fire after
https://codereview.chromium.org/1646583002 lands.

Changing over to CancellableTaskFactory means we can bypass the
assert.

BUG=546953

Review URL: https://codereview.chromium.org/1716713003

Cr-Commit-Position: refs/heads/master@{#376453}