(merge m59) Added switch for bypassing protected media identifier permission

(merge m59) Added switch for bypassing protected media identifier permission

For testing protected content we need to bypass the prompt
for permission to play protected content. This change add the
switch --unsafely-allow-protected-media-identifier-for-domain
which will disable the info bar when protected content needs
permission when playing from localhost.

BUG=718608
Review-Url: https://codereview.chromium.org/2816773002
Cr-Original-Commit-Position: refs/heads/master@{#471150}
Review-Url: https://codereview.chromium.org/2881843003 .
Cr-Commit-Position: refs/branch-heads/3071@{#539}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed: https://chromium.googlesource.com/chromium/src/+/969d28d0e04dcf8a76842a634d9c79baa5b3286e

[xhwang, 2017-05-12 21:26:34]

Description was changed from

==========
(merge m59) Added switch for bypassing protected media identifier permission

For testing protected content we need to bypass the prompt
for permission to play protected content. This change add the
switch --unsafely-allow-protected-media-identifier-for-domain
which will disable the info bar when protected content needs
permission when playing from localhost.

BUG=718608

Review-Url: https://codereview.chromium.org/2816773002
Cr-Commit-Position: refs/heads/master@{#471150}
(cherry picked from commit 2ae33ffef0abd60c2fb050dbbadafae3345c568a)
==========

to

==========
(merge m59) Added switch for bypassing protected media identifier permission

For testing protected content we need to bypass the prompt
for permission to play protected content. This change add the
switch --unsafely-allow-protected-media-identifier-for-domain
which will disable the info bar when protected content needs
permission when playing from localhost.

BUG=718608

Review-Url: https://codereview.chromium.org/2816773002
Cr-Original-Commit-Position: refs/heads/master@{#471150}
Review-Url: https://codereview.chromium.org/2881843003 .
Cr-Commit-Position: refs/branch-heads/3071@{#539}
Cr-Branched-From:
a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed:
https://chromium.googlesource.com/chromium/src/+/969d28d0e04dcf8a76842a634d9c...
==========

[xhwang, 2017-05-12 21:26:35]

Committed patchset #1 (id:1) manually as
969d28d0e04dcf8a76842a634d9c79baa5b3286e.