Code re-factor related to WeakPtrFactory in src/gin module

Code re-factor related to WeakPtrFactory in src/gin module

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

BUG=303818
Committed: https://crrev.com/71a12a87117d7c88f02ec2c75b81726d12cbcc1a
Cr-Commit-Position: refs/heads/master@{#295709}

[ARUNKK, 2014-09-17 05:19:52]

kulkarni.a@samsung.com changed reviewers:
+ abarth@chromium.org

[ARUNKK, 2014-09-17 05:19:53]

PTAL.

[ARUNKK, 2014-09-19 07:16:55]

kulkarni.a@samsung.com changed reviewers:
+ jochen@chromium.org

[ARUNKK, 2014-09-19 07:16:56]

PTAL.

[ARUNKK, 2014-09-19 07:17:15]

kulkarni.a@samsung.com changed reviewers:
+ aa@chromium.org

[jochen (gone - plz use gerrit), 2014-09-19 13:30:36]

lgtm with nit

https://codereview.chromium.org/580703002/diff/1/gin/modules/timer.h
File gin/modules/timer.h (right):

https://codereview.chromium.org/580703002/diff/1/gin/modules/timer.h#newcode44
gin/modules/timer.h:44: 
nit. no empty line

while you touch this class anyway, please add DISALLOW_COPY_AND_ASSIGN(Timer);

[ARUNKK, 2014-09-19 13:31:53]

The CQ bit was checked by kulkarni.a@samsung.com

[commit-bot: I haz the power, 2014-09-19 13:32:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/580703002/1

[ARUNKK, 2014-09-19 13:44:37]

On 2014/09/19 13:30:36, jochen (slow for reviews) wrote:
> lgtm with nit
> 
> https://codereview.chromium.org/580703002/diff/1/gin/modules/timer.h
> File gin/modules/timer.h (right):
> 
> https://codereview.chromium.org/580703002/diff/1/gin/modules/timer.h#newcode44
> gin/modules/timer.h:44: 
> nit. no empty line
> 
> while you touch this class anyway, please add DISALLOW_COPY_AND_ASSIGN(Timer);

Thanks for review and LGTM.

[commit-bot: I haz the power, 2014-09-19 15:05:14]

Committed patchset #1 (id:1) as fa62a2308be795b4b8c6850d8015cb81f843da89

[commit-bot: I haz the power, 2014-09-19 15:05:49]

Patchset 1 (id:??) landed as
https://crrev.com/71a12a87117d7c88f02ec2c75b81726d12cbcc1a
Cr-Commit-Position: refs/heads/master@{#295709}