Remove cached Activity from TabWebContentsDelegate and ContextMenuPopulator

Remove cached Activityfrom TabWebContentsDelegate and ContextMenuPopulator

Use the added getActivity and getTabModelSelector for getting access to
WindowAndroid's copy and don't cache Activity inside tab related
classes.

BUG=546736
Committed: https://crrev.com/a670cc9196acabf5d1e3449dcd633b5778111e24
Cr-Commit-Position: refs/heads/master@{#371090}

[Yusuf, 2016-01-22 20:59:22]

Description was changed from

==========
Remove cached Activityfrom TabWebContentsDelegate and ContextMenuPopulator

Use the added getActivity and getTabModelSelector for getting access to
WindowAndroid's copy and don't cache Activity inside tab related
classes.

BUG=546736
==========

to

==========
Remove cached Activityfrom TabWebContentsDelegate and ContextMenuPopulator

Use the added getActivity and getTabModelSelector for getting access to
WindowAndroid's copy and don't cache Activity inside tab related
classes.

BUG=546736
==========

[Yusuf, 2016-01-22 20:59:32]

yusufo@chromium.org changed reviewers:
+ dfalcantara@chromium.org

[gone, 2016-01-22 21:11:57]

lgtm

[gone, 2016-01-22 21:11:57]

lgtm

lgtm

[Yusuf, 2016-01-22 21:12:25]

The CQ bit was checked by yusufo@chromium.org

[commit-bot: I haz the power, 2016-01-22 21:12:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1616073006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1616073006/1

[commit-bot: I haz the power, 2016-01-22 22:37:35]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-01-22 22:37:36]

Try jobs failed on following builders:
  android_clang_dbg_recipe on tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_clan...)

[Yusuf, 2016-01-22 22:49:04]

The CQ bit was checked by yusufo@chromium.org

[Yusuf, 2016-01-22 22:49:04]

The patchset sent to the CQ was uploaded after l-g-t-m from
dfalcantara@chromium.org
Link to the patchset: https://codereview.chromium.org/1616073006/#ps20001
(title: "Fixed findbugs")

[commit-bot: I haz the power, 2016-01-22 22:51:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1616073006/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1616073006/20001

[commit-bot: I haz the power, 2016-01-23 00:05:36]

Description was changed from

==========
Remove cached Activityfrom TabWebContentsDelegate and ContextMenuPopulator

Use the added getActivity and getTabModelSelector for getting access to
WindowAndroid's copy and don't cache Activity inside tab related
classes.

BUG=546736
==========

to

==========
Remove cached Activityfrom TabWebContentsDelegate and ContextMenuPopulator

Use the added getActivity and getTabModelSelector for getting access to
WindowAndroid's copy and don't cache Activity inside tab related
classes.

BUG=546736
==========

[commit-bot: I haz the power, 2016-01-23 00:05:37]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-01-23 00:07:31]

Description was changed from

==========
Remove cached Activityfrom TabWebContentsDelegate and ContextMenuPopulator

Use the added getActivity and getTabModelSelector for getting access to
WindowAndroid's copy and don't cache Activity inside tab related
classes.

BUG=546736
==========

to

==========
Remove cached Activityfrom TabWebContentsDelegate and ContextMenuPopulator

Use the added getActivity and getTabModelSelector for getting access to
WindowAndroid's copy and don't cache Activity inside tab related
classes.

BUG=546736

Committed: https://crrev.com/a670cc9196acabf5d1e3449dcd633b5778111e24
Cr-Commit-Position: refs/heads/master@{#371090}
==========

[commit-bot: I haz the power, 2016-01-23 00:07:32]

Patchset 2 (id:??) landed as
https://crrev.com/a670cc9196acabf5d1e3449dcd633b5778111e24
Cr-Commit-Position: refs/heads/master@{#371090}