RTCCertificate to/from PEM string serialization.

RTCCertificate to/from PEM string serialization.

This is part of larger work that will allow persistent storage of
RTCCertificate in IndexedDB. The big picture can be seen here:
https://codereview.chromium.org/1949033002/

This CL implements part 1:

1. RTCCertificate to/from string
   a) The ToPEM and FromPEM serialization functions from the WebRTC layer that
      converts RTCCertificate to- and from string are made visible in the blink
      and content layers.
   b) |WebRTCCertificate::keyParams| is removed so that we don't have to
      serialize this or add getters for obtaining this information from the
      WebRTC layer's RTCCertificate. The getter was never used by anyone.

BUG=581354
Committed: https://crrev.com/a9302bb5a5d8b9cce886049fff8e586660006dfd
Cr-Commit-Position: refs/heads/master@{#392342}

[hbos_chromium, 2016-05-09 13:45:55]

hbos@chromium.org changed reviewers:
+ jochen@chromium.org, tommi@chromium.org

[hbos_chromium, 2016-05-09 13:45:56]

Please take a look tommi & jochen.

This is another one of those CLs that exposes webrtc functions to blink (actual
to/from PEM being in webrtc).

[jochen (gone - plz use gerrit), 2016-05-09 15:45:19]

lgtm

[tommi (sloooow) - chröme, 2016-05-09 17:00:30]

The CQ bit was checked by tommi@chromium.org

[tommi (sloooow) - chröme, 2016-05-09 17:00:31]

lgtm

[commit-bot: I haz the power, 2016-05-09 17:00:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1957293002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1957293002/1

[commit-bot: I haz the power, 2016-05-09 17:06:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-09 17:08:13]

Description was changed from

==========
RTCCertificate to/from PEM string serialization.

This is part of larger work that will allow persistent storage of
RTCCertificate in IndexedDB. The big picture can be seen here:
https://codereview.chromium.org/1949033002/

This CL implements part 1:

1. RTCCertificate to/from string
   a) The ToPEM and FromPEM serialization functions from the WebRTC layer that
      converts RTCCertificate to- and from string are made visible in the blink
      and content layers.
   b) |WebRTCCertificate::keyParams| is removed so that we don't have to
      serialize this or add getters for obtaining this information from the
      WebRTC layer's RTCCertificate. The getter was never used by anyone.

BUG=581384
==========

to

==========
RTCCertificate to/from PEM string serialization.

This is part of larger work that will allow persistent storage of
RTCCertificate in IndexedDB. The big picture can be seen here:
https://codereview.chromium.org/1949033002/

This CL implements part 1:

1. RTCCertificate to/from string
   a) The ToPEM and FromPEM serialization functions from the WebRTC layer that
      converts RTCCertificate to- and from string are made visible in the blink
      and content layers.
   b) |WebRTCCertificate::keyParams| is removed so that we don't have to
      serialize this or add getters for obtaining this information from the
      WebRTC layer's RTCCertificate. The getter was never used by anyone.

BUG=581384

Committed: https://crrev.com/a9302bb5a5d8b9cce886049fff8e586660006dfd
Cr-Commit-Position: refs/heads/master@{#392342}
==========

[commit-bot: I haz the power, 2016-05-09 17:08:14]

Patchset 1 (id:??) landed as
https://crrev.com/a9302bb5a5d8b9cce886049fff8e586660006dfd
Cr-Commit-Position: refs/heads/master@{#392342}

[hbos_chromium, 2016-05-11 08:58:47]

Description was changed from

==========
RTCCertificate to/from PEM string serialization.

This is part of larger work that will allow persistent storage of
RTCCertificate in IndexedDB. The big picture can be seen here:
https://codereview.chromium.org/1949033002/

This CL implements part 1:

1. RTCCertificate to/from string
   a) The ToPEM and FromPEM serialization functions from the WebRTC layer that
      converts RTCCertificate to- and from string are made visible in the blink
      and content layers.
   b) |WebRTCCertificate::keyParams| is removed so that we don't have to
      serialize this or add getters for obtaining this information from the
      WebRTC layer's RTCCertificate. The getter was never used by anyone.

BUG=581384

Committed: https://crrev.com/a9302bb5a5d8b9cce886049fff8e586660006dfd
Cr-Commit-Position: refs/heads/master@{#392342}
==========

to

==========
RTCCertificate to/from PEM string serialization.

This is part of larger work that will allow persistent storage of
RTCCertificate in IndexedDB. The big picture can be seen here:
https://codereview.chromium.org/1949033002/

This CL implements part 1:

1. RTCCertificate to/from string
   a) The ToPEM and FromPEM serialization functions from the WebRTC layer that
      converts RTCCertificate to- and from string are made visible in the blink
      and content layers.
   b) |WebRTCCertificate::keyParams| is removed so that we don't have to
      serialize this or add getters for obtaining this information from the
      WebRTC layer's RTCCertificate. The getter was never used by anyone.

BUG=581354

Committed: https://crrev.com/a9302bb5a5d8b9cce886049fff8e586660006dfd
Cr-Commit-Position: refs/heads/master@{#392342}
==========