The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3c3890ee4f2132a4a5e35ce9a2ceff73cac1b80e

commit 3c3890ee4f2132a4a5e35ce9a2ceff73cac1b80e
Author: toyoshim <toyoshim@chromium.org>
Date: Thu Oct 27 17:50:14 2016

WebFonts intervention: understand if download time matches the decision

To understand download time correlation with intervention decision,
breakdown download time metrics per intervention decision.

We have download time metrics per data size, but this change adds only
10KB to 50KB range since it covers about 70% cases.

BUG= 659371 

Review-Url: https://codereview.chromium.org/2443883003
Cr-Commit-Position: refs/heads/master@{#428072}

[modify] https://crrev.com/3c3890ee4f2132a4a5e35ce9a2ceff73cac1b80e/third_party/WebKit/Source/core/css/RemoteFontFaceSource.cpp
[modify] https://crrev.com/3c3890ee4f2132a4a5e35ce9a2ceff73cac1b80e/third_party/WebKit/Source/core/css/RemoteFontFaceSource.h
[modify] https://crrev.com/3c3890ee4f2132a4a5e35ce9a2ceff73cac1b80e/tools/metrics/histograms/histograms.xml

Your change meets the bar and is auto-approved for M55 (branch: 2883)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/08cf9d06a99491023abd464e7ee1be55258c7e91

commit 08cf9d06a99491023abd464e7ee1be55258c7e91
Author: Takashi Toyoshima <toyoshim@chromium.org>
Date: Sat Oct 29 09:35:46 2016

WebFonts intervention: understand if download time matches the decision

To understand download time correlation with intervention decision,
breakdown download time metrics per intervention decision.

We have download time metrics per data size, but this change adds only
10KB to 50KB range since it covers about 70% cases.

BUG= 659371 

Review-Url: https://codereview.chromium.org/2443883003
Cr-Commit-Position: refs/heads/master@{#428072}
(cherry picked from commit 3c3890ee4f2132a4a5e35ce9a2ceff73cac1b80e)
TBR=toyoshim@chromium.org

Review URL: https://codereview.chromium.org/2465643002 .

Cr-Commit-Position: refs/branch-heads/2883@{#376}
Cr-Branched-From: 614d31daee2f61b0180df403a8ad43f20b9f6dd7-refs/heads/master@{#423768}

[modify] https://crrev.com/08cf9d06a99491023abd464e7ee1be55258c7e91/third_party/WebKit/Source/core/css/RemoteFontFaceSource.cpp
[modify] https://crrev.com/08cf9d06a99491023abd464e7ee1be55258c7e91/third_party/WebKit/Source/core/css/RemoteFontFaceSource.h
[modify] https://crrev.com/08cf9d06a99491023abd464e7ee1be55258c7e91/tools/metrics/histograms/histograms.xml