CL in progress
https://codereview.chromium.org/2917463002/

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6d43fc8beaa41811acc6c77a56ab2174ca283788

commit 6d43fc8beaa41811acc6c77a56ab2174ca283788
Author: chcunningham <chcunningham@chromium.org>
Date: Wed Jun 07 20:22:14 2017

Enable vp09 codec string in WebM by default

Removes need for command line switch --enable-new-vp9-codec-string

BUG= 727902 

Review-Url: https://codereview.chromium.org/2917463002
Cr-Commit-Position: refs/heads/master@{#477749}

[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/chrome/browser/media/encrypted_media_supported_types_browsertest.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/content/browser/media/media_canplaytype_browsertest.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/content/browser/media/media_capabilities_browsertest.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/content/browser/renderer_host/render_process_host_impl.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/content/renderer/render_thread_impl.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/media/base/decode_capabilities.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/media/base/media.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/media/base/media.h
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/media/base/media_switches.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/media/base/media_switches.h
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/media/base/mime_util_internal.cc
[modify] https://crrev.com/6d43fc8beaa41811acc6c77a56ab2174ca283788/media/base/mime_util_unittest.cc

Your change meets the bar and is auto-approved for M60. Please go ahead and merge the CL to branch 3112 manually. Please contact milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), josafat@(ChromeOS), bustamante@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/384201c1babf1efffbf2db9760df832f6fd77c18

commit 384201c1babf1efffbf2db9760df832f6fd77c18
Author: Chris Cunningham <chcunningham@chromium.org>
Date: Thu Jun 08 20:52:42 2017

Enable vp09 codec string in WebM by default

Removes need for command line switch --enable-new-vp9-codec-string

BUG= 727902 

Review-Url: https://codereview.chromium.org/2917463002
Cr-Original-Commit-Position: refs/heads/master@{#477749}
Review-Url: https://codereview.chromium.org/2926393002 .
Cr-Commit-Position: refs/branch-heads/3112@{#267}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}

[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/chrome/browser/media/encrypted_media_supported_types_browsertest.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/content/browser/media/media_canplaytype_browsertest.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/content/browser/media/media_capabilities_browsertest.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/content/browser/renderer_host/render_process_host_impl.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/content/renderer/render_thread_impl.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/media/base/decode_capabilities.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/media/base/media.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/media/base/media.h
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/media/base/media_switches.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/media/base/media_switches.h
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/media/base/mime_util_internal.cc
[modify] https://crrev.com/384201c1babf1efffbf2db9760df832f6fd77c18/media/base/mime_util_unittest.cc