Re-land enabling wheel gestures on all platforms.
Changes since last attempt in https://codereview.chromium.org/1724783002/
MacOSX implementation has landed in
https://codereview.chromium.org/1749343004/
The Android perf regression has been eliminated because the default
wheel transaction is set to 0. The perf regression was because the
wheel transaction time was added to the total time of the test.
Attention perf sherrifs; a minor perf regression is expected in
this change. 8-10% when locally on my Nexus 5; this minor regression is
anticipated because of the new code paths.
BUG=568183
Review URL: https://codereview.chromium.org/1776843003
Cr-Commit-Position: refs/heads/master@{#382345}
1 file changed
