Reland of Add support for device-change notifications to MediaStreamDispatcher

Reland of Add support for device-change notifications to MediaStreamDispatcher (patchset #1 id:1 of https://codereview.chromium.org/1945603002/ )

Reason for revert:
Will remove EXPECT_DEATH, which is problematic in a few supported platforms when there is more than one thread.

Original issue's description:
> Revert of Add support for device-change notifications to MediaStreamDispatcher (patchset #2 id:270001 of https://codereview.chromium.org/1943213002/ )
>
> Reason for revert:
> Still seems to break tests. See e.g.
>
> https://uberchromegw.corp.google.com/i/chromium.mac/builders/Mac10.9%20Tests/builds/20743/steps/content_unittests%20on%20Mac-10.9
>
> Original issue's description:
> > Reland of Add support for device-change notifications to MediaStreamDispatcher (patchset #1 id:1 of https://codereview.chromium.org/1939313003/ )
> >
> > Reason for revert:
> > This reland should fix the offending test.
> >
> > Original issue's description:
> > > Revert of Add support for device-change notifications to MediaStreamDispatcher and MediaStreamDispatcherHost (patchset #6 id:100001 of https://codereview.chromium.org/1918173002/ )
> > >
> > > Reason for revert:
> > > This has caused content_browsertests to fail on multiple builders, e.g.:
> > >
> > > https://build.chromium.org/p/chromium.linux/builders/Cast%20Linux/builds/23972
> > > https://build.chromium.org/p/chromium.linux/builders/Android%20GN/builds/34086
> > >
> > > Original issue's description:
> > > > Add support for device-change notifications to MediaStreamDispatcher and MediaStreamDispatcherHost
> > > >
> > > > This is a step towards supporting the "devicechange" event in Blink.
> > > >
> > > > BUG=388648
> > > >
> > > > Committed: https://crrev.com/ec334e1799ae25aaa1b0c66e25af641018a3a84a
> > > > Cr-Commit-Position: refs/heads/master@{#391114}
> > >
> > > TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.org,guidou@chromium.org
> > > # Skipping CQ checks because original CL landed less than 1 days ago.
> > > NOPRESUBMIT=true
> > > NOTREECHECKS=true
> > > NOTRY=true
> > > BUG=388648
> > >
> > > Committed: https://crrev.com/2396227939dc83d23f2523a992b0e35da50d631e
> > > Cr-Commit-Position: refs/heads/master@{#391141}
> >
> > TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.org,dpranke@chromium.org
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG=388648
> >
> > Committed: https://crrev.com/cb53c53e9816623ac51e9b151815897ba2a30b22
> > Cr-Commit-Position: refs/heads/master@{#391192}
>
> TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.org,dpranke@chromium.org,perkj@chromium.org,guidou@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=388648
>
> Committed: https://crrev.com/ce93576c57265e1d407fa122a98743e339686256
> Cr-Commit-Position: refs/heads/master@{#391202}

TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.org,dpranke@chromium.org,perkj@chromium.org,henrika@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=388648
Committed: https://crrev.com/da330facfb86b325030fef9bc7cf4f85930b6d16
Cr-Commit-Position: refs/heads/master@{#391216}

[Guido Urdaneta, 2016-05-03 13:07:42]

Created Reland of Add support for device-change notifications to
MediaStreamDispatcher

[Guido Urdaneta, 2016-05-03 13:15:49]

On 2016/05/03 13:07:42, Guido Urdaneta wrote:
> Created Reland of Add support for device-change notifications to
> MediaStreamDispatcher

PS2 removes EXPECT_DEATH_IF_SUPPORTED which turned out to be as problematic as
EXPECT_DEATH in a lot of bots.

[Guido Urdaneta, 2016-05-03 13:16:56]

The CQ bit was checked by guidou@chromium.org

[commit-bot: I haz the power, 2016-05-03 13:17:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1943853002/180001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1943853002/180001

[commit-bot: I haz the power, 2016-05-03 13:17:47]

Committed patchset #2 (id:180001)

[commit-bot: I haz the power, 2016-05-03 13:18:49]

Description was changed from

==========
Reland of Add support for device-change notifications to MediaStreamDispatcher
(patchset #1 id:1 of https://codereview.chromium.org/1945603002/ )

Reason for revert:
Will remove EXPECT_DEATH, which is problematic in a few supported platforms when
there is more than one thread.

Original issue's description:
> Revert of Add support for device-change notifications to MediaStreamDispatcher
(patchset #2 id:270001 of https://codereview.chromium.org/1943213002/ )
> 
> Reason for revert:
> Still seems to break tests. See e.g.
> 
>
https://uberchromegw.corp.google.com/i/chromium.mac/builders/Mac10.9%20Tests/...
> 
> Original issue's description:
> > Reland of Add support for device-change notifications to
MediaStreamDispatcher (patchset #1 id:1 of
https://codereview.chromium.org/1939313003/ )
> >
> > Reason for revert:
> > This reland should fix the offending test.
> >
> > Original issue's description:
> > > Revert of Add support for device-change notifications to
MediaStreamDispatcher and MediaStreamDispatcherHost (patchset #6 id:100001 of
https://codereview.chromium.org/1918173002/ )
> > >
> > > Reason for revert:
> > > This has caused content_browsertests to fail on multiple builders, e.g.:
> > >
> > >
https://build.chromium.org/p/chromium.linux/builders/Cast%20Linux/builds/23972
> > >
https://build.chromium.org/p/chromium.linux/builders/Android%20GN/builds/34086
> > >
> > > Original issue's description:
> > > > Add support for device-change notifications to MediaStreamDispatcher and
MediaStreamDispatcherHost
> > > >
> > > > This is a step towards supporting the "devicechange" event in Blink.
> > > >
> > > > BUG=388648
> > > >
> > > > Committed: https://crrev.com/ec334e1799ae25aaa1b0c66e25af641018a3a84a
> > > > Cr-Commit-Position: refs/heads/master@{#391114}
> > >
> > >
TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
> > > # Skipping CQ checks because original CL landed less than 1 days ago.
> > > NOPRESUBMIT=true
> > > NOTREECHECKS=true
> > > NOTRY=true
> > > BUG=388648
> > >
> > > Committed: https://crrev.com/2396227939dc83d23f2523a992b0e35da50d631e
> > > Cr-Commit-Position: refs/heads/master@{#391141}
> >
> >
TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG=388648
> >
> > Committed: https://crrev.com/cb53c53e9816623ac51e9b151815897ba2a30b22
> > Cr-Commit-Position: refs/heads/master@{#391192}
> 
>
TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=388648
> 
> Committed: https://crrev.com/ce93576c57265e1d407fa122a98743e339686256
> Cr-Commit-Position: refs/heads/master@{#391202}

TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=388648
==========

to

==========
Reland of Add support for device-change notifications to MediaStreamDispatcher
(patchset #1 id:1 of https://codereview.chromium.org/1945603002/ )

Reason for revert:
Will remove EXPECT_DEATH, which is problematic in a few supported platforms when
there is more than one thread.

Original issue's description:
> Revert of Add support for device-change notifications to MediaStreamDispatcher
(patchset #2 id:270001 of https://codereview.chromium.org/1943213002/ )
>
> Reason for revert:
> Still seems to break tests. See e.g.
>
>
https://uberchromegw.corp.google.com/i/chromium.mac/builders/Mac10.9%20Tests/...
>
> Original issue's description:
> > Reland of Add support for device-change notifications to
MediaStreamDispatcher (patchset #1 id:1 of
https://codereview.chromium.org/1939313003/ )
> >
> > Reason for revert:
> > This reland should fix the offending test.
> >
> > Original issue's description:
> > > Revert of Add support for device-change notifications to
MediaStreamDispatcher and MediaStreamDispatcherHost (patchset #6 id:100001 of
https://codereview.chromium.org/1918173002/ )
> > >
> > > Reason for revert:
> > > This has caused content_browsertests to fail on multiple builders, e.g.:
> > >
> > >
https://build.chromium.org/p/chromium.linux/builders/Cast%20Linux/builds/23972
> > >
https://build.chromium.org/p/chromium.linux/builders/Android%20GN/builds/34086
> > >
> > > Original issue's description:
> > > > Add support for device-change notifications to MediaStreamDispatcher and
MediaStreamDispatcherHost
> > > >
> > > > This is a step towards supporting the "devicechange" event in Blink.
> > > >
> > > > BUG=388648
> > > >
> > > > Committed: https://crrev.com/ec334e1799ae25aaa1b0c66e25af641018a3a84a
> > > > Cr-Commit-Position: refs/heads/master@{#391114}
> > >
> > >
TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
> > > # Skipping CQ checks because original CL landed less than 1 days ago.
> > > NOPRESUBMIT=true
> > > NOTREECHECKS=true
> > > NOTRY=true
> > > BUG=388648
> > >
> > > Committed: https://crrev.com/2396227939dc83d23f2523a992b0e35da50d631e
> > > Cr-Commit-Position: refs/heads/master@{#391141}
> >
> >
TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG=388648
> >
> > Committed: https://crrev.com/cb53c53e9816623ac51e9b151815897ba2a30b22
> > Cr-Commit-Position: refs/heads/master@{#391192}
>
>
TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=388648
>
> Committed: https://crrev.com/ce93576c57265e1d407fa122a98743e339686256
> Cr-Commit-Position: refs/heads/master@{#391202}

TBR=tommi@chromium.org,palmer@chromium.org,bbudge@chromium.org,hta@chromium.o...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=388648

Committed: https://crrev.com/da330facfb86b325030fef9bc7cf4f85930b6d16
Cr-Commit-Position: refs/heads/master@{#391216}
==========

[commit-bot: I haz the power, 2016-05-03 13:18:51]

Patchset 2 (id:??) landed as
https://crrev.com/da330facfb86b325030fef9bc7cf4f85930b6d16
Cr-Commit-Position: refs/heads/master@{#391216}