Fixing a crash when clicking download notification while Chrome is killed

Fixing a crash when clicking download notification while Chrome is killed

When clicking on download notification, Chrome checks if the download file
can be opened by itself.
This calls into a native function.
However, if user kills Chrome, and then clicks the notification, this
generates a Broadcast to Chrome.
When BroadcastReceiver runs, native library is not loaded.
As a result, this generates a crash.
This CL solves the problem by performing the mime type checking when
download completes.
So that we don't need to check it when BroadcastReceiver runs

TBR=dfalcantara@chromium.org
BUG=658012
Review-Url: https://codereview.chromium.org/2446643004
Cr-Commit-Position: refs/heads/master@{#427204}
(cherry picked from commit ff25b0171fdd6663cc16000071c8d65c3cde1cb0)

Committed: https://chromium.googlesource.com/chromium/src/+/e92cfc834916b71c7e7dd8613d5fd2ba7da706bc

[qinmin, 2016-10-25 17:09:45]

Description was changed from

==========
Fixing a crash when clicking download notification while Chrome is killed

When clicking on download notification, Chrome checks if the download file
can be opened by itself.
This calls into a native function.
However, if user kills Chrome, and then clicks the notification, this
generates a Broadcast to Chrome.
When BroadcastReceiver runs, native library is not loaded.
As a result, this generates a crash.
This CL solves the problem by performing the mime type checking when
download completes.
So that we don't need to check it when BroadcastReceiver runs

TBR=dfalcantara@chromium.org
BUG=658012

Review-Url: https://codereview.chromium.org/2446643004
Cr-Commit-Position: refs/heads/master@{#427204}
(cherry picked from commit ff25b0171fdd6663cc16000071c8d65c3cde1cb0)
==========

to

==========
Fixing a crash when clicking download notification while Chrome is killed

When clicking on download notification, Chrome checks if the download file
can be opened by itself.
This calls into a native function.
However, if user kills Chrome, and then clicks the notification, this
generates a Broadcast to Chrome.
When BroadcastReceiver runs, native library is not loaded.
As a result, this generates a crash.
This CL solves the problem by performing the mime type checking when
download completes.
So that we don't need to check it when BroadcastReceiver runs

TBR=dfalcantara@chromium.org
BUG=658012

Review-Url: https://codereview.chromium.org/2446643004
Cr-Commit-Position: refs/heads/master@{#427204}
(cherry picked from commit ff25b0171fdd6663cc16000071c8d65c3cde1cb0)

Committed:
https://chromium.googlesource.com/chromium/src/+/e92cfc834916b71c7e7dd8613d5f...
==========

[qinmin, 2016-10-25 17:09:46]

Committed patchset #1 (id:1) manually as
e92cfc834916b71c7e7dd8613d5fd2ba7da706bc (presubmit successful).