Revert of Enable allocator shim for Android

Revert of Enable allocator shim for Android (patchset #2 id:20001 of https://codereview.chromium.org/1875043003/ )

Reason for revert:
Looks like this breaks android clang builds.

Original issue's description:
> Enable allocator shim for Android
>
> This is a follow-up to crrev.com/1719433002, which introduced the
> shim for Android, and enables it by default by setting
> use_experimental_allocator_shim=true for Android.
>
> Build/Perf sheriffs heads up
> ----------------------------
> If you see any build error or crash related with __wrap_malloc,
> __wrap_free, __real_malloc, __real_free, etc this CL is to blame.
>
> Performance considerations
> ------------------------
> Binary size diff (GN, arm, static, official build): 24k
>
> I did a mixture of local and trybots run to estimate the perf impact
> of this change. Didn't get any conclusive data, everything I tried
> seems in the same ballpark, below noise levels. More in details:
>
> cc_perftests.PrepareTiles on a Nexus 4.
> Rationale of the choice: in a previous CL (crbug.com/593344), this
> benchmark revealed the presence of two mfences in the malloc path.
> Results: https://goo.gl/8VC3Jp in the same ballpark.
>
> page-cycler on Nexus 9 via trybots:
> Results: http://goo.gl/J3i50a seems to suggest that this CL improves
> both warm and cold times in most cases. I doubt it, more likely it's
> noise.
>
> All the other perf trybots failed. The perf waterfall seems to be in a
> bad state in these days.
>
> BUG=550886, 598075
> TEST=base_unittests --gtest_filter=AllocatorShimTest.*
> TBR=thakis@chromium.org
>
> Committed: https://crrev.com/ebb95496c73dc0d5ce83968ac619921f154305f7
> Cr-Commit-Position: refs/heads/master@{#386386}

TBR=dalecurtis@chromium.org,primiano@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=550886, 598075
Committed: https://crrev.com/6fdf2cfe0228e221c2cd738edabf3514459d6a89
Cr-Commit-Position: refs/heads/master@{#386408}

[Nico, 2016-04-11 18:11:15]

Created Revert of Enable allocator shim for Android

[commit-bot: I haz the power, 2016-04-11 18:11:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1881523003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1881523003/1

[commit-bot: I haz the power, 2016-04-11 18:13:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-11 18:15:10]

Description was changed from

==========
Revert of Enable allocator shim for Android (patchset #2 id:20001 of
https://codereview.chromium.org/1875043003/ )

Reason for revert:
Looks like this breaks android clang builds.

Original issue's description:
> Enable allocator shim for Android
> 
> This is a follow-up to crrev.com/1719433002, which introduced the
> shim for Android, and enables it by default by setting
> use_experimental_allocator_shim=true for Android.
> 
> Build/Perf sheriffs heads up
> ----------------------------
> If you see any build error or crash related with __wrap_malloc,
> __wrap_free, __real_malloc, __real_free, etc this CL is to blame.
> 
> Performance considerations
> ------------------------
> Binary size diff (GN, arm, static, official build): 24k
> 
> I did a mixture of local and trybots run to estimate the perf impact
> of this change. Didn't get any conclusive data, everything I tried
> seems in the same ballpark, below noise levels. More in details:
> 
> cc_perftests.PrepareTiles on a Nexus 4.
> Rationale of the choice: in a previous CL (crbug.com/593344), this
> benchmark revealed the presence of two mfences in the malloc path.
> Results: https://goo.gl/8VC3Jp in the same ballpark.
> 
> page-cycler on Nexus 9 via trybots:
> Results: http://goo.gl/J3i50a seems to suggest that this CL improves
> both warm and cold times in most cases. I doubt it, more likely it's
> noise.
> 
> All the other perf trybots failed. The perf waterfall seems to be in a
> bad state in these days.
> 
> BUG=550886,598075
> TEST=base_unittests --gtest_filter=AllocatorShimTest.*
> TBR=thakis@chromium.org
> 
> Committed: https://crrev.com/ebb95496c73dc0d5ce83968ac619921f154305f7
> Cr-Commit-Position: refs/heads/master@{#386386}

TBR=dalecurtis@chromium.org,primiano@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=550886,598075
==========

to

==========
Revert of Enable allocator shim for Android (patchset #2 id:20001 of
https://codereview.chromium.org/1875043003/ )

Reason for revert:
Looks like this breaks android clang builds.

Original issue's description:
> Enable allocator shim for Android
>
> This is a follow-up to crrev.com/1719433002, which introduced the
> shim for Android, and enables it by default by setting
> use_experimental_allocator_shim=true for Android.
>
> Build/Perf sheriffs heads up
> ----------------------------
> If you see any build error or crash related with __wrap_malloc,
> __wrap_free, __real_malloc, __real_free, etc this CL is to blame.
>
> Performance considerations
> ------------------------
> Binary size diff (GN, arm, static, official build): 24k
>
> I did a mixture of local and trybots run to estimate the perf impact
> of this change. Didn't get any conclusive data, everything I tried
> seems in the same ballpark, below noise levels. More in details:
>
> cc_perftests.PrepareTiles on a Nexus 4.
> Rationale of the choice: in a previous CL (crbug.com/593344), this
> benchmark revealed the presence of two mfences in the malloc path.
> Results: https://goo.gl/8VC3Jp in the same ballpark.
>
> page-cycler on Nexus 9 via trybots:
> Results: http://goo.gl/J3i50a seems to suggest that this CL improves
> both warm and cold times in most cases. I doubt it, more likely it's
> noise.
>
> All the other perf trybots failed. The perf waterfall seems to be in a
> bad state in these days.
>
> BUG=550886,598075
> TEST=base_unittests --gtest_filter=AllocatorShimTest.*
> TBR=thakis@chromium.org
>
> Committed: https://crrev.com/ebb95496c73dc0d5ce83968ac619921f154305f7
> Cr-Commit-Position: refs/heads/master@{#386386}

TBR=dalecurtis@chromium.org,primiano@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=550886,598075

Committed: https://crrev.com/6fdf2cfe0228e221c2cd738edabf3514459d6a89
Cr-Commit-Position: refs/heads/master@{#386408}
==========

[commit-bot: I haz the power, 2016-04-11 18:15:11]

Patchset 1 (id:??) landed as
https://crrev.com/6fdf2cfe0228e221c2cd738edabf3514459d6a89
Cr-Commit-Position: refs/heads/master@{#386408}