Linux: Remove SSE2 check at startup.

Linux: Remove SSE2 check at startup.

Google Chrome for Linux is 64-bit only now. All amd64 processors
should support SSE2. This effectively reverts r271529.

Committed: https://crrev.com/f0ec52e845cb35991816f971d92e6961cd1b96ef
Cr-Commit-Position: refs/heads/master@{#393614}

[Lei Zhang, 2016-05-09 21:22:52]

Description was changed from

==========
Linux: Remove SSE2 check at startup.

Google Chrome for Linux is 64-bit only now. All amd64 processors
support SSE2 AFAIK.
==========

to

==========
Linux: Remove SSE2 check at startup.

Google Chrome for Linux is 64-bit only now. All amd64 processors
should support SSE2. This effectively reverts r271529.
==========

[Lei Zhang, 2016-05-09 21:22:52]

thestig@chromium.org changed reviewers:
+ thakis@chromium.org

[Nico, 2016-05-09 21:29:37]

lgtm, but:

https://codereview.chromium.org/1961163002/diff/1/chrome/installer/linux/comm...
File chrome/installer/linux/common/wrapper (left):

https://codereview.chromium.org/1961163002/diff/1/chrome/installer/linux/comm...
chrome/installer/linux/common/wrapper:26: echo "$SSE2_DEPRECATION_MSG" 1>&2
should we have a check for "can this computer run 64-bit chrome" instead now?

[Lei Zhang, 2016-05-09 21:39:37]

On 2016/05/09 21:29:37, Nico wrote:
> lgtm, but:
> 
>
https://codereview.chromium.org/1961163002/diff/1/chrome/installer/linux/comm...
> File chrome/installer/linux/common/wrapper (left):
> 
>
https://codereview.chromium.org/1961163002/diff/1/chrome/installer/linux/comm...
> chrome/installer/linux/common/wrapper:26: echo "$SSE2_DEPRECATION_MSG" 1>&2
> should we have a check for "can this computer run 64-bit chrome" instead now?

No. A 64-bit Chrome package is not easily installable on a 32-bit machine. If
someone wedges it in, or unpacks it and tries to run it, they are shooting
themselves in the foot and we shouldn't care too much.

They won't get very far either:

leiz@32-bit-machine:$ /path/to/64-bit-hello-world
-bash: /path/to/64-bit-hello-world: cannot execute binary file: Exec format
error

[Lei Zhang, 2016-05-13 19:20:29]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2016-05-13 19:21:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1961163002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1961163002/1

[commit-bot: I haz the power, 2016-05-13 20:33:43]

Description was changed from

==========
Linux: Remove SSE2 check at startup.

Google Chrome for Linux is 64-bit only now. All amd64 processors
should support SSE2. This effectively reverts r271529.
==========

to

==========
Linux: Remove SSE2 check at startup.

Google Chrome for Linux is 64-bit only now. All amd64 processors
should support SSE2. This effectively reverts r271529.
==========

[commit-bot: I haz the power, 2016-05-13 20:33:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-13 20:35:15]

Description was changed from

==========
Linux: Remove SSE2 check at startup.

Google Chrome for Linux is 64-bit only now. All amd64 processors
should support SSE2. This effectively reverts r271529.
==========

to

==========
Linux: Remove SSE2 check at startup.

Google Chrome for Linux is 64-bit only now. All amd64 processors
should support SSE2. This effectively reverts r271529.

Committed: https://crrev.com/f0ec52e845cb35991816f971d92e6961cd1b96ef
Cr-Commit-Position: refs/heads/master@{#393614}
==========

[commit-bot: I haz the power, 2016-05-13 20:35:16]

Patchset 1 (id:??) landed as
https://crrev.com/f0ec52e845cb35991816f971d92e6961cd1b96ef
Cr-Commit-Position: refs/heads/master@{#393614}