Merge to M52: VTVDA: Handle more missing IDR situations.

Merge to M52: VTVDA: Handle more missing IDR situations.

This CL reduces the conditions on dropping frames to just
|waiting_for_idr_|. We don't need to consider whether there is a pending
config change (this should be a decode error if we are not waiting) or
whether |session_| is set (|waiting_for_idr_| covers this).

BUG=623892
Review-Url: https://codereview.chromium.org/2101183004
Cr-Commit-Position: refs/heads/master@{#402853}
(cherry picked from commit fcd0ee541d7f3f74171f194dcc86cb1672a33139)

Committed: https://chromium.googlesource.com/chromium/src/+/34efc858465acf3180451339c3727b513f43b7d9

[sandersd (OOO until July 31), 2016-06-30 18:55:20]

Description was changed from

==========
Merge to M52: VTVDA: Handle more missing IDR situations.

This CL reduces the conditions on dropping frames to just
|waiting_for_idr_|. We don't need to consider whether there is a pending
config change (this should be a decode error if we are not waiting) or
whether |session_| is set (|waiting_for_idr_| covers this).

BUG=623892

Review-Url: https://codereview.chromium.org/2101183004
Cr-Commit-Position: refs/heads/master@{#402853}
(cherry picked from commit fcd0ee541d7f3f74171f194dcc86cb1672a33139)
==========

to

==========
Merge to M52: VTVDA: Handle more missing IDR situations.

This CL reduces the conditions on dropping frames to just
|waiting_for_idr_|. We don't need to consider whether there is a pending
config change (this should be a decode error if we are not waiting) or
whether |session_| is set (|waiting_for_idr_| covers this).

BUG=623892

Review-Url: https://codereview.chromium.org/2101183004
Cr-Commit-Position: refs/heads/master@{#402853}
(cherry picked from commit fcd0ee541d7f3f74171f194dcc86cb1672a33139)

Committed:
https://chromium.googlesource.com/chromium/src/+/34efc858465acf3180451339c372...
==========

[sandersd (OOO until July 31), 2016-06-30 18:55:22]

Committed patchset #1 (id:1) manually as
34efc858465acf3180451339c3727b513f43b7d9 (tree was closed).