Version 5.5.184

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.184@{#1}
Cr-Branched-From: 4276567-refs/heads/master@{#39399}

Version 5.5.183

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.183@{#1}
Cr-Branched-From: f85af18-refs/heads/master@{#39397}

Version 5.5.182

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.182@{#1}
Cr-Branched-From: 3472b57-refs/heads/master@{#39395}

Version 5.5.177.1 (cherry-pick)

Merged f85af18

Revert of [heap] Enable black allocation when finalizing incremental marking. (patchset v8#6 id:100001 of https://codereview.chromium.org/2239733002/ )

BUG=chromium:630386
LOG=N
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/2344453002 .

Cr-Commit-Position: refs/heads/5.5.177@{v8#2}
Cr-Branched-From: c986417-refs/heads/master@{#39384}

Version 5.5.181

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.181@{#1}
Cr-Branched-From: c8e93b0-refs/heads/master@{#39391}

Version 5.5.180

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.180@{#1}
Cr-Branched-From: 5a9eac3-refs/heads/master@{#39388}

Version 5.5.179

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.179@{#1}
Cr-Branched-From: 2b1753a-refs/heads/master@{#39386}

Version 5.5.178

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.178@{#1}
Cr-Branched-From: 8528974-refs/heads/master@{#39385}

Version 5.5.177

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.177@{#1}
Cr-Branched-From: c986417-refs/heads/master@{#39384}

Version 5.5.176

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/5.5.176@{#1}
Cr-Branched-From: 26f3e30-refs/heads/master@{#39383}