Revert of Update V8 to version 4.3.56.

Revert of Update V8 to version 4.3.56. (patchset #1 id:1 of https://codereview.chromium.org/1005693012/)

Reason for revert:
number of crashes in DevTools layout tests

3605	  if (p->owner()->identity() != CODE_SPACE) return false;
(gdb) bt
#0  IsOnInvalidatedCodeObject (addr=<optimized out>) at ../../v8/src/heap/mark-compact.cc:3605
#1  v8::internal::SlotsBuffer::UpdateSlotsWithFilter (this=0x51d8988d820, heap=0x51d892af040) at ../../v8/src/heap/mark-compact.cc:4725
#2  0x0000000001bf4a3f in UpdateSlotsRecordedIn (heap=0x51d892af040, buffer=<optimized out>, code_slots_filtering_required=<optimized out>) at ../../v8/src/heap/mark-compact.h:330
#3  v8::internal::MarkCompactCollector::EvacuateNewSpaceAndCandidates (this=0x51d892b4fc8) at ../../v8/src/heap/mark-compact.cc:3761
#4  0x0000000001be8838 in v8::internal::MarkCompactCollector::SweepSpaces (this=0x51d892b4fc8) at ../../v8/src/heap/mark-compact.cc:4448
#5  0x0000000001be745f in v8::internal::MarkCompactCollector::CollectGarbage (this=0x51d892b4fc8) at ../../v8/src/heap/mark-compact.cc:377
#6  0x0000000001bb662b in v8::internal::Heap::MarkCompact (this=0x51d892af040) at ../../v8/src/heap/heap.cc:1274
#7  0x0000000001bb4d31 in v8::internal::Heap::PerformGarbageCollection (this=0x51d892af040, collector=v8::internal::MARK_COMPACTOR, gc_callback_flags=v8::kNoGCCallbackFlags) at ../../v8/src/heap/heap.cc:1159
#8  0x0000000001bb46b2 in v8::internal::Heap::CollectGarbage (this=0x51d892af040, collector=<optimized out>, gc_reason=<optimized out>, collector_reason=<optimized out>, gc_callback_flags=<optimized out>)
    at ../../v8/src/heap/heap.cc:894
#9  0x0000000001bb3a46 in CollectGarbage (space=v8::internal::OLD_POINTER_SPACE, gc_reason=0x0, callbackFlags=v8::kNoGCCallbackFlags, this=<optimized out>) at ../../v8/src/heap/heap-inl.h:567
#10 CollectAllGarbage (this=0x51d892af040, flags=0, gc_callback_flags=v8::kNoGCCallbackFlags, gc_reason=<optimized out>) at ../../v8/src/heap/heap.cc:784
#11 v8::internal::Heap::HandleGCRequest (this=0x51d892af040) at ../../v8/src/heap/heap.cc:735
#12 0x0000000001b5804b in v8::internal::StackGuard::HandleInterrupts (this=0x51d892b54c8) at ../../v8/src/execution.cc:663
#13 0x0000000001fff9ac in __RT_impl_Runtime_StackGuard (isolate=<optimized out>, args=...) at ../../v8/src/runtime/runtime-internal.cc:119
#14 v8::internal::Runtime_StackGuard (args_length=<optimized out>, args_object=0x1139a18f7c28, isolate=<optimized out>) at ../../v8/src/runtime/runtime-internal.cc:109

Original issue's description:
> Update V8 to version 4.3.56.
>
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/c5443d75..b09c6a7d
>
> Please follow these instructions for assigning/CC'ing issues:
> https://code.google.com/p/v8-wiki/wiki/TriagingIssues
>
> TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelheim@chromium.org
> BUG=
>
> Committed: https://crrev.com/16408c2845040574d5e458703f848aa04b2bb629
> Cr-Commit-Position: refs/heads/master@{#322237}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,yangguo@chromium.org,v8-autoroll@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/bb148160238aa54b21001d354556701ea778d96a
Cr-Commit-Position: refs/heads/master@{#322348}

[loislo, 2015-03-26 10:11:48]

Created Revert of Update V8 to version 4.3.56.

[commit-bot: I haz the power, 2015-03-26 10:11:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/997883003/1

[commit-bot: I haz the power, 2015-03-26 10:12:23]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-26 10:13:19]

Patchset 1 (id:??) landed as
https://crrev.com/bb148160238aa54b21001d354556701ea778d96a
Cr-Commit-Position: refs/heads/master@{#322348}

[Rick Byers, 2015-03-26 14:12:45]

Note this crash also broke all the perf bots.  Example logs in case you need
more:

http://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf%20%281%29/b...

http://build.chromium.org/p/chromium.perf/builders/Linux%20Perf%20%282%29/bui...

[loislo, 2015-03-26 14:15:33]

The roll was reverted and new roll with the fix was applied.

On Thu, Mar 26, 2015 at 5:12 PM <rbyers@chromium.org> wrote:

> Note this crash also broke all the perf bots.  Example logs in case you
> need
> more:
>
> http://build.chromium.org/p/chromium.perf/builders/Win%
> 208%20Perf%20%281%29/builds/1360/steps/page_cycler.intl_
> ko_th_vi/logs/stdio#failure1
>
> http://build.chromium.org/p/chromium.perf/builders/Linux%
> 20Perf%20%282%29/builds/6694/steps/page_cycler.typical_25/
> logs/stdio#failure1
>
> https://codereview.chromium.org/997883003/
>

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