Allow building with is_clang=false, use_sysroot=true

Allow building with is_clang=false, use_sysroot=true

Building with the wheezy sysroot and is_clang=false results in errors
like this:

../../base/process/process_iterator.h:12:16: fatal error: list: No
such file or directory
 #include <list>

[1] added a restriction that use_sysroot must be false when building
with is_clang=false.  However, as of [2], the wheezy sysroot has been
removed, and these compilation errors are not present on the Jessie
sysroot.  This CL removes the restriction added by [1].

[1] https://codereview.chromium.org/1476923005
[2] https://codereview.chromium.org/2597523003

BUG=575778
R=dpranke@chromium.org

Review-Url: https://codereview.chromium.org/2804633005
Cr-Commit-Position: refs/heads/master@{#462343}
Committed: https://chromium.googlesource.com/chromium/src/+/c2c8a4d94797d67f76e061be40cfed0378eccd81

[Tom (Use chromium acct), 2017-04-05 21:52:31]

dpranke@ ptal

[Tom (Use chromium acct), 2017-04-05 21:52:35]

The CQ bit was checked by thomasanderson@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-04-05 21:53:08]

Dry run: 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, 2017-04-05 23:48:58]

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

[commit-bot: I haz the power, 2017-04-05 23:48:59]

Dry run: Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[Dirk Pranke, 2017-04-06 00:58:29]

lgtm

[Tom (Use chromium acct), 2017-04-06 03:03:17]

The CQ bit was checked by thomasanderson@google.com

[commit-bot: I haz the power, 2017-04-06 03:03:32]

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, 2017-04-06 03:31:26]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491447797879770, "parent_rev":
"a1746a908f94b40aea3c37d63734d4667e3835bc", "commit_rev":
"c2c8a4d94797d67f76e061be40cfed0378eccd81"}

[commit-bot: I haz the power, 2017-04-06 03:32:17]

Description was changed from

==========
Allow building with is_clang=false, use_sysroot=true

Building with the wheezy sysroot and is_clang=false results in errors
like this:

../../base/process/process_iterator.h:12:16: fatal error: list: No
such file or directory
 #include <list>

[1] added a restriction that use_sysroot must be false when building
with is_clang=false.  However, as of [2], the wheezy sysroot has been
removed, and these compilation errors are not present on the Jessie
sysroot.  This CL removes the restriction added by [1].

[1] https://codereview.chromium.org/1476923005
[2] https://codereview.chromium.org/2597523003

BUG=575778
R=dpranke@chromium.org
==========

to

==========
Allow building with is_clang=false, use_sysroot=true

Building with the wheezy sysroot and is_clang=false results in errors
like this:

../../base/process/process_iterator.h:12:16: fatal error: list: No
such file or directory
 #include <list>

[1] added a restriction that use_sysroot must be false when building
with is_clang=false.  However, as of [2], the wheezy sysroot has been
removed, and these compilation errors are not present on the Jessie
sysroot.  This CL removes the restriction added by [1].

[1] https://codereview.chromium.org/1476923005
[2] https://codereview.chromium.org/2597523003

BUG=575778
R=dpranke@chromium.org

Review-Url: https://codereview.chromium.org/2804633005
Cr-Commit-Position: refs/heads/master@{#462343}
Committed:
https://chromium.googlesource.com/chromium/src/+/c2c8a4d94797d67f76e061be40cf...
==========

[commit-bot: I haz the power, 2017-04-06 03:32:18]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c2c8a4d94797d67f76e061be40cf...