Add runtime feature SlimmingPaintInvalidation

Add runtime feature SlimmingPaintInvalidation

This is disbled by default for M57.

Will switch to enabled by default when we enable
SlimmingPaintInvalidation feature in blink on M58.

BUG=646176
R=esprehn@chromium.org
TBR=jochen@chromium.org (content/child/runtime_features.cc: chrome feature->blink feature)
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2647883004
Cr-Original-Commit-Position: refs/heads/master@{#445220}
Review-Url: https://codereview.chromium.org/2648173004
Cr-Commit-Position: refs/branch-heads/2987@{#41}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/82c51e9f7290d846e662cc46ee33a50b5b31c9fb

[Xianzhu, 2017-01-23 22:27:07]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2017-01-23 22:27:51]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-23 22:29:43]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485210427484740, "parent_rev":
"704304275a7760e4da700315a1ce42b9d7585f90", "commit_rev":
"82c51e9f7290d846e662cc46ee33a50b5b31c9fb"}

[commit-bot: I haz the power, 2017-01-23 22:30:14]

Description was changed from

==========
Add runtime feature SlimmingPaintInvalidation

This is disbled by default for M57.

Will switch to enabled by default when we enable
SlimmingPaintInvalidation feature in blink on M58.

BUG=646176
R=esprehn@chromium.org
TBR=jochen@chromium.org (content/child/runtime_features.cc: chrome
feature->blink feature)
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2647883004
Cr-Commit-Position: refs/heads/master@{#445220}
==========

to

==========
Add runtime feature SlimmingPaintInvalidation

This is disbled by default for M57.

Will switch to enabled by default when we enable
SlimmingPaintInvalidation feature in blink on M58.

BUG=646176
R=esprehn@chromium.org
TBR=jochen@chromium.org (content/child/runtime_features.cc: chrome
feature->blink feature)
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2647883004
Cr-Original-Commit-Position: refs/heads/master@{#445220}
Review-Url: https://codereview.chromium.org/2648173004
Cr-Commit-Position: refs/branch-heads/2987@{#41}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/82c51e9f7290d846e662cc46ee33...
==========

[commit-bot: I haz the power, 2017-01-23 22:30:15]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/82c51e9f7290d846e662cc46ee33...