Fix more uses of T* conversion operator from scoped_refptr<T> which is now removed

Fix more uses of T* conversion operator from scoped_refptr<T> which is now removed

Fix more uses of T* conversion operator from scoped_refptr<T> which is now removed.

Please see https://codereview.chromium.org/510323002 for reference.

TEST=ozone_demo and content_shell under Ozone-GBM
BUG=none
NOTRY=true

Committed: https://crrev.com/91af9a880b03c43c0a3b5d1da88b0bcb03603752
Cr-Commit-Position: refs/heads/master@{#294172}

[vignatti (out of this project), 2014-09-10 13:54:39]

tiago.vignatti@intel.com changed reviewers:
+ spang@chromium.org

[vignatti (out of this project), 2014-09-10 13:54:57]

spang@ PTAL.

[spang, 2014-09-10 14:30:02]

lgtm

[vignatti (out of this project), 2014-09-10 14:35:51]

The CQ bit was checked by tiago.vignatti@intel.com

[commit-bot: I haz the power, 2014-09-10 14:41:12]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tiago.vignatti@intel.com/552133004/1

[spang, 2014-09-10 14:48:48]

The CQ bit was unchecked by spang@chromium.org

[spang, 2014-09-10 14:49:05]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2014-09-10 14:49:12]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tiago.vignatti@intel.com/552133004/1

[commit-bot: I haz the power, 2014-09-10 14:51:46]

Committed patchset #1 (id:1) as 62b69b782f6b129dd1c304d853e83843f5d7823c

[commit-bot: I haz the power, 2014-09-10 14:56:58]

Patchset 1 (id:??) landed as
https://crrev.com/91af9a880b03c43c0a3b5d1da88b0bcb03603752
Cr-Commit-Position: refs/heads/master@{#294172}