Introduce ExpectApproxEq, a helper function that allows making assertions that certain values are e…

Introduce ExpectApproxEq, a helper function that allows making assertions that certain values are equal within the margin of specified relative error.

This is to avoid manually hacking around test failures like:
Expected equality of these values:
  expected_pacing_rate
    Which is: 10.78 Mbits/s (1.35 Mbytes/s)
  sender_->PacingRate(0)
    Which is: 10.78 Mbits/s (1.35 Mbytes/s)

Merge internal change: 132613274

R=rch@chromium.org
BUG=

Committed: https://crrev.com/aaa4fe750e44ccb3d46e585abcaa17a976f2bead
Cr-Commit-Position: refs/heads/master@{#418696}

[Victor Vasiliev, 2016-09-14 19:41:35]

The CQ bit was checked by vasilvv@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-14 19:42:18]

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

[Ryan Hamilton, 2016-09-14 19:52:03]

lgtm

[commit-bot: I haz the power, 2016-09-14 20:04:02]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-14 20:04:05]

Dry run: Try jobs failed on following builders:
  win_chromium_compile_dbg_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_comp...)
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[Victor Vasiliev, 2016-09-14 21:43:49]

The CQ bit was checked by vasilvv@chromium.org

[Victor Vasiliev, 2016-09-14 21:43:49]

The patchset sent to the CQ was uploaded after l-g-t-m from rch@chromium.org
Link to the patchset: https://codereview.chromium.org/2336913006/#ps20001
(title: "Fix MSVC warnings")

[commit-bot: I haz the power, 2016-09-14 21:44:31]

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, 2016-09-14 22:26:44]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-14 22:28:27]

Description was changed from

==========
Introduce ExpectApproxEq, a helper function that allows making assertions that
certain values are equal within the margin of specified relative error.

This is to avoid manually hacking around test failures like:
Expected equality of these values:
  expected_pacing_rate
    Which is: 10.78 Mbits/s (1.35 Mbytes/s)
  sender_->PacingRate(0)
    Which is: 10.78 Mbits/s (1.35 Mbytes/s)

Merge internal change: 132613274

R=rch@chromium.org
BUG=
==========

to

==========
Introduce ExpectApproxEq, a helper function that allows making assertions that
certain values are equal within the margin of specified relative error.

This is to avoid manually hacking around test failures like:
Expected equality of these values:
  expected_pacing_rate
    Which is: 10.78 Mbits/s (1.35 Mbytes/s)
  sender_->PacingRate(0)
    Which is: 10.78 Mbits/s (1.35 Mbytes/s)

Merge internal change: 132613274

R=rch@chromium.org
BUG=

Committed: https://crrev.com/aaa4fe750e44ccb3d46e585abcaa17a976f2bead
Cr-Commit-Position: refs/heads/master@{#418696}
==========

[commit-bot: I haz the power, 2016-09-14 22:28:28]

Patchset 2 (id:??) landed as
https://crrev.com/aaa4fe750e44ccb3d46e585abcaa17a976f2bead
Cr-Commit-Position: refs/heads/master@{#418696}