Revert of Include -fsanitize=float-cast-overflow in is_ubsan=true builds.

Revert of Include -fsanitize=float-cast-overflow in is_ubsan=true builds. (patchset #1 id:1 of https://codereview.chromium.org/2550593004/ )

Reason for revert:
Somewhat speculative; it looks like clusterfuzz might use this list and filed many many float overflow bugs (https://bugs.chromium.org/p/chromium/issues/list?can=2&q=%22Float-cast-overflow%22&x=m&y=releaseblock&cells=ids). While we should fix all those, doing so by letting clusterfuzz file close to a hundred bugs assigned to random people isn't the way we should go about it, and CF filing all this bugs wasn't intended when I wrote this CL.

Original issue's description:
> Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
>
> Also add a comment about the current state of ubsan.
>
> BUG=669642
>
> Committed: https://crrev.com/2e147959b92ac70c0eb3e0568ae664d39614b68c
> Cr-Commit-Position: refs/heads/master@{#436093}

TBR=krasin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=669642
Committed: https://crrev.com/c4c7a57c10a808a2eefcc605095fe40fb75b2650
Cr-Commit-Position: refs/heads/master@{#440258}

[Nico, 2016-12-21 22:14:57]

The CQ bit was checked by thakis@chromium.org

[Nico, 2016-12-21 22:14:57]

Created Revert of Include -fsanitize=float-cast-overflow in is_ubsan=true
builds.

[commit-bot: I haz the power, 2016-12-21 22:15:22]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-21 23:11:32]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1482358497419600, "parent_rev":
"6dce610161dc27d1fc0fd2cddd7a47558f5c7bc9", "commit_rev":
"060f5775d63361fa9bd5120a8b048bc9852dceb2"}

[commit-bot: I haz the power, 2016-12-21 23:12:02]

Description was changed from

==========
Revert of Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
(patchset #1 id:1 of https://codereview.chromium.org/2550593004/ )

Reason for revert:
Somewhat speculative; it looks like clusterfuzz might use this list and filed
many many float overflow bugs
(https://bugs.chromium.org/p/chromium/issues/list?can=2&q=%22Float-cast-overfl...).
While we should fix all those, doing so by letting clusterfuzz file close to a
hundred bugs assigned to random people isn't the way we should go about it, and
CF filing all this bugs wasn't intended when I wrote this CL.

Original issue's description:
> Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
> 
> Also add a comment about the current state of ubsan.
> 
> BUG=669642
> 
> Committed: https://crrev.com/2e147959b92ac70c0eb3e0568ae664d39614b68c
> Cr-Commit-Position: refs/heads/master@{#436093}

TBR=krasin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=669642
==========

to

==========
Revert of Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
(patchset #1 id:1 of https://codereview.chromium.org/2550593004/ )

Reason for revert:
Somewhat speculative; it looks like clusterfuzz might use this list and filed
many many float overflow bugs
(https://bugs.chromium.org/p/chromium/issues/list?can=2&q=%22Float-cast-overfl...).
While we should fix all those, doing so by letting clusterfuzz file close to a
hundred bugs assigned to random people isn't the way we should go about it, and
CF filing all this bugs wasn't intended when I wrote this CL.

Original issue's description:
> Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
> 
> Also add a comment about the current state of ubsan.
> 
> BUG=669642
> 
> Committed: https://crrev.com/2e147959b92ac70c0eb3e0568ae664d39614b68c
> Cr-Commit-Position: refs/heads/master@{#436093}

TBR=krasin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=669642

Review-Url: https://codereview.chromium.org/2598813002
==========

[commit-bot: I haz the power, 2016-12-21 23:12:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-21 23:14:21]

Description was changed from

==========
Revert of Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
(patchset #1 id:1 of https://codereview.chromium.org/2550593004/ )

Reason for revert:
Somewhat speculative; it looks like clusterfuzz might use this list and filed
many many float overflow bugs
(https://bugs.chromium.org/p/chromium/issues/list?can=2&q=%22Float-cast-overfl...).
While we should fix all those, doing so by letting clusterfuzz file close to a
hundred bugs assigned to random people isn't the way we should go about it, and
CF filing all this bugs wasn't intended when I wrote this CL.

Original issue's description:
> Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
> 
> Also add a comment about the current state of ubsan.
> 
> BUG=669642
> 
> Committed: https://crrev.com/2e147959b92ac70c0eb3e0568ae664d39614b68c
> Cr-Commit-Position: refs/heads/master@{#436093}

TBR=krasin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=669642

Review-Url: https://codereview.chromium.org/2598813002
==========

to

==========
Revert of Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
(patchset #1 id:1 of https://codereview.chromium.org/2550593004/ )

Reason for revert:
Somewhat speculative; it looks like clusterfuzz might use this list and filed
many many float overflow bugs
(https://bugs.chromium.org/p/chromium/issues/list?can=2&q=%22Float-cast-overfl...).
While we should fix all those, doing so by letting clusterfuzz file close to a
hundred bugs assigned to random people isn't the way we should go about it, and
CF filing all this bugs wasn't intended when I wrote this CL.

Original issue's description:
> Include -fsanitize=float-cast-overflow in is_ubsan=true builds.
>
> Also add a comment about the current state of ubsan.
>
> BUG=669642
>
> Committed: https://crrev.com/2e147959b92ac70c0eb3e0568ae664d39614b68c
> Cr-Commit-Position: refs/heads/master@{#436093}

TBR=krasin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=669642

Committed: https://crrev.com/c4c7a57c10a808a2eefcc605095fe40fb75b2650
Cr-Commit-Position: refs/heads/master@{#440258}
==========

[commit-bot: I haz the power, 2016-12-21 23:14:22]

Patchset 1 (id:??) landed as
https://crrev.com/c4c7a57c10a808a2eefcc605095fe40fb75b2650
Cr-Commit-Position: refs/heads/master@{#440258}

[krasin1, 2016-12-22 00:59:32]

lgtm