Remove FragementationData lazyness

Remove FragementationData lazyness

Having fragmentation data be lazy on RootInlineBox only saves us a single
int (due to the pointer and the fact that we have room to pack its bool
into InlineFlowBox's bitfields), and the allocation overhead was large enough
it appeared on performance tests (see bug).

BUG=313700
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=185170

[leviw_travelin_and_unemployed, 2014-11-12 00:22:31]

leviw@chromium.org changed reviewers:
+ chrishtr@chromium.org, eae@chromium.org, pdr@chromium.org

[eae, 2014-11-12 00:26:35]

LGTM

[leviw_travelin_and_unemployed, 2014-11-12 00:28:28]

The CQ bit was checked by leviw@chromium.org

[commit-bot: I haz the power, 2014-11-12 00:28:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/715973004/40001

[commit-bot: I haz the power, 2014-11-12 00:40:57]

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

[commit-bot: I haz the power, 2014-11-12 00:40:59]

Try jobs failed on following builders:
  android_chromium_gn_compile_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/android_chromium_gn_comp...)
  linux_blink_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/3...)
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/3...)
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/35948)

[leviw_travelin_and_unemployed, 2014-11-12 01:21:10]

The CQ bit was checked by leviw@chromium.org

[commit-bot: I haz the power, 2014-11-12 01:21:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/715973004/60001

[commit-bot: I haz the power, 2014-11-12 02:30:19]

Committed patchset #4 (id:60001) as 185170