Don't abort the MimeHandlerStreamManager stream if we receive a RenderProcessHostChanged notificati…

Don't abort the MimeHandlerStreamManager stream if we receive a RenderProcessHostChanged notification for a null old host.

Merging to M55

This indicates that a subframe is being created. If we ignore  the old_host here and set
the new host pointer in the MimeHandlerStreamManager::EmbedderObserver class, this causes
the stream to be aborted prematurely leading to embedded PDFs not loading.

This should fix bug 650985

BUG=650985
Review-Url: https://codereview.chromium.org/2418963002
Cr-Commit-Position: refs/heads/master@{#425498}
(cherry picked from commit b8cfa3b172b2741635247a8541e3251688aaa04f)

Committed: https://chromium.googlesource.com/chromium/src/+/e7dac575925f858b0b344798e776c859f7c6076b

[ananta, 2016-11-01 19:32:25]

Description was changed from

==========
Don't abort the MimeHandlerStreamManager stream if we receive a
RenderProcessHostChanged notification for a null old host.

Merging to M55

This indicates that a subframe is being created. If we ignore  the old_host here
and set
the new host pointer in the MimeHandlerStreamManager::EmbedderObserver class,
this causes
the stream to be aborted prematurely leading to embedded PDFs not loading.

This should fix bug 650985

BUG=650985

Review-Url: https://codereview.chromium.org/2418963002
Cr-Commit-Position: refs/heads/master@{#425498}
(cherry picked from commit b8cfa3b172b2741635247a8541e3251688aaa04f)
==========

to

==========
Don't abort the MimeHandlerStreamManager stream if we receive a
RenderProcessHostChanged notification for a null old host.

Merging to M55

This indicates that a subframe is being created. If we ignore  the old_host here
and set
the new host pointer in the MimeHandlerStreamManager::EmbedderObserver class,
this causes
the stream to be aborted prematurely leading to embedded PDFs not loading.

This should fix bug 650985

BUG=650985

Review-Url: https://codereview.chromium.org/2418963002
Cr-Commit-Position: refs/heads/master@{#425498}
(cherry picked from commit b8cfa3b172b2741635247a8541e3251688aaa04f)

Committed:
https://chromium.googlesource.com/chromium/src/+/e7dac575925f858b0b344798e776...
==========

[ananta, 2016-11-01 19:32:28]

Committed patchset #1 (id:1) manually as
e7dac575925f858b0b344798e776c859f7c6076b.