[Sync] Ensure the user has a chance to change their settings on Android.

[Sync] Ensure the user has a chance to change their settings on Android.

Using onCreate and onDestroy means that the user can go into the Google
Activity Controls or Sync settings subpages without triggering sync.
Note that leaving the sync page will still cause sync to start, but at
that point it seems safe to assume the settings are good.

BUG=613340
Review-Url: https://codereview.chromium.org/1988133005
Cr-Commit-Position: refs/heads/master@{#395081}
(cherry picked from commit 0acf90ed8a771fd3129fbbca5e1ec898e0430336)

Committed: https://chromium.googlesource.com/chromium/src/+/0fa795426dacf096f6f2b3b11a37c80396c4d72c

[maxbogue, 2016-05-23 18:58:51]

Description was changed from

==========
[Sync] Ensure the user has a chance to change their settings on Android.

Using onCreate and onDestroy means that the user can go into the Google
Activity Controls or Sync settings subpages without triggering sync.
Note that leaving the sync page will still cause sync to start, but at
that point it seems safe to assume the settings are good.

BUG=613340

Review-Url: https://codereview.chromium.org/1988133005
Cr-Commit-Position: refs/heads/master@{#395081}
(cherry picked from commit 0acf90ed8a771fd3129fbbca5e1ec898e0430336)
==========

to

==========
[Sync] Ensure the user has a chance to change their settings on Android.

Using onCreate and onDestroy means that the user can go into the Google
Activity Controls or Sync settings subpages without triggering sync.
Note that leaving the sync page will still cause sync to start, but at
that point it seems safe to assume the settings are good.

BUG=613340

Review-Url: https://codereview.chromium.org/1988133005
Cr-Commit-Position: refs/heads/master@{#395081}
(cherry picked from commit 0acf90ed8a771fd3129fbbca5e1ec898e0430336)

Committed:
https://chromium.googlesource.com/chromium/src/+/0fa795426dacf096f6f2b3b11a37...
==========

[maxbogue, 2016-05-23 18:58:53]

Committed patchset #1 (id:1) manually as
0fa795426dacf096f6f2b3b11a37c80396c4d72c.