Merge M51: "Fix audio glitch issue introduced by security fix for format changes."

Merge M51: "Fix audio glitch issue introduced by security fix for format changes."

The patch was comparing the new sample rate value versus itself instead
of the old sample rate value versus the new.

BUG=602731
TEST=no more stuttering.

Review URL: https://codereview.chromium.org/1879143004

Cr-Commit-Position: refs/heads/master@{#386887}
(cherry picked from commit f4e5abab8d5d01bbb920bac53b0c9598412e4105)

Committed: https://chromium.googlesource.com/chromium/src/+/199d980741e84ed8588b074d0ce214427f822a36

[DaleCurtis, 2016-04-14 00:48:24]

Description was changed from

==========
Merge M51: "Fix audio glitch issue introduced by security fix for format
changes."

The patch was comparing the new sample rate value versus itself instead
of the old sample rate value versus the new.

BUG=602731
TEST=no more stuttering.

Review URL: https://codereview.chromium.org/1879143004

Cr-Commit-Position: refs/heads/master@{#386887}
(cherry picked from commit f4e5abab8d5d01bbb920bac53b0c9598412e4105)
==========

to

==========
Merge M51: "Fix audio glitch issue introduced by security fix for format
changes."

The patch was comparing the new sample rate value versus itself instead
of the old sample rate value versus the new.

BUG=602731
TEST=no more stuttering.

Review URL: https://codereview.chromium.org/1879143004

Cr-Commit-Position: refs/heads/master@{#386887}
(cherry picked from commit f4e5abab8d5d01bbb920bac53b0c9598412e4105)

Committed:
https://chromium.googlesource.com/chromium/src/+/199d980741e84ed8588b074d0ce2...
==========

[DaleCurtis, 2016-04-14 00:48:26]

Committed patchset #1 (id:1) manually as
199d980741e84ed8588b074d0ce214427f822a36.