[Sync] Make SMTP always have the dump stack function.

[Sync] Make SMTP always have the dump stack function.

Previously this was threaded through ModelTypeController, which is bad
because it meant we uploaded completely useless stacks for any errors
in the model code that occurred prior to sync starting up.

Now the function is curried directly into the processor factory
function, so we always have access to it.

BUG=673883, 680093
Review-Url: https://codereview.chromium.org/2639393002
Cr-Commit-Position: refs/heads/master@{#445122}
(cherry picked from commit 5f90a97e73ca55f5bbe2fd23fc67da6c3c92010f)

Review-Url: https://codereview.chromium.org/2650643004 .
Cr-Commit-Position: refs/branch-heads/2987@{#28}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/e696d653aaf7f2797335f773715711270a0b1b0a

[maxbogue, 2017-01-23 18:23:02]

Description was changed from

==========
[Sync] Make SMTP always have the dump stack function.

Previously this was threaded through ModelTypeController, which is bad
because it meant we uploaded completely useless stacks for any errors
in the model code that occurred prior to sync starting up.

Now the function is curried directly into the processor factory
function, so we always have access to it.

BUG=673883,680093

Review-Url: https://codereview.chromium.org/2639393002
Cr-Commit-Position: refs/heads/master@{#445122}
(cherry picked from commit 5f90a97e73ca55f5bbe2fd23fc67da6c3c92010f)
==========

to

==========
[Sync] Make SMTP always have the dump stack function.

Previously this was threaded through ModelTypeController, which is bad
because it meant we uploaded completely useless stacks for any errors
in the model code that occurred prior to sync starting up.

Now the function is curried directly into the processor factory
function, so we always have access to it.

BUG=673883,680093

Review-Url: https://codereview.chromium.org/2639393002
Cr-Commit-Position: refs/heads/master@{#445122}
(cherry picked from commit 5f90a97e73ca55f5bbe2fd23fc67da6c3c92010f)

Review-Url: https://codereview.chromium.org/2650643004 .
Cr-Commit-Position: refs/branch-heads/2987@{#28}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/e696d653aaf7f2797335f7737157...
==========

[maxbogue, 2017-01-23 18:23:03]

Committed patchset #1 (id:1) manually as
e696d653aaf7f2797335f773715711270a0b1b0a.