Fix WeakPtrFactory member ordering in chrome

Fix WeakPtrFactory member ordering in chrome

Changing in the intialization order of WeakPtrFactory such that all
member variables should appear before the WeakPtrFactory to ensure
that any WeakPtrs to Controller are invalidated before its members
variable's destructors are executed, rendering them invalid.

BUG=303818
Committed: https://crrev.com/62e915a1c0db1f62e9e4687d3670d5423a9ef720
Cr-Commit-Position: refs/heads/master@{#307945}

[anujsharma, 2014-12-11 09:48:35]

anujk.sharma@samsung.com changed reviewers:
+ thestig@chromium.org

[anujsharma, 2014-12-11 09:48:35]

PTAL

[Lei Zhang, 2014-12-11 18:13:25]

The CQ bit was checked by thestig@chromium.org

[Lei Zhang, 2014-12-11 18:13:25]

lgtm

[commit-bot: I haz the power, 2014-12-11 18:14:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/795943002/40001

[commit-bot: I haz the power, 2014-12-11 19:23:27]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2014-12-11 19:24:19]

Patchset 3 (id:??) landed as
https://crrev.com/62e915a1c0db1f62e9e4687d3670d5423a9ef720
Cr-Commit-Position: refs/heads/master@{#307945}