Code cleanup in core/html/

Code cleanup in core/html/

style and nits and other minor cleanup

BUG=
TBR=eae@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=197143

[pilgrim_google, 2015-06-15 21:40:29]

The CQ bit was checked by pilgrim@chromium.org

[commit-bot: I haz the power, 2015-06-15 21:40:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1186823007/1

[commit-bot: I haz the power, 2015-06-15 21:42:42]

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

[commit-bot: I haz the power, 2015-06-15 21:42:43]

Try jobs failed on following builders:
  android_blink_compile_dbg on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_db...)
  android_blink_compile_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_re...)
  blink_presubmit on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/3...)
  linux_blink_compile_dbg on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/linux_blink_compile_dbg/...)
  linux_blink_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/6...)
  linux_chromium_gn_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/linux_chromium_gn_rel/bu...)
  mac_blink_compile_dbg on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/mac_blink_compile_dbg/bu...)
  mac_blink_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/mac_blink_rel/builds/58985)
  win_blink_rel on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/66702)

[pilgrim_google, 2015-06-15 21:56:12]

The CQ bit was checked by pilgrim@chromium.org

[commit-bot: I haz the power, 2015-06-15 21:56:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1186823007/1

[commit-bot: I haz the power, 2015-06-15 23:20:07]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=197143