Gtk: Change NULL to nullptr

Gtk: Change NULL to nullptr

This CL changes all instances of NULL to nullptr in libgtkui.

The process was:
$ find chrome/browser/ui/libgtkui -type f | xargs sed
  -i 's/NULL/nullptr/g'
$ git cl format

In addition, remove a workaround that redefines NULL to nullptr since
all references to NULL have been removed.
https://cs.chromium.org/chromium/src/chrome/browser/ui/libgtkui/gtk_ui.cc?rcl=8db1658c62cfe49d1be14bc0186d4c20152cfd84&l=85

BUG=79722
R=erg@chromium.org

Review-Url: https://codereview.chromium.org/2707313002
Cr-Commit-Position: refs/heads/master@{#452198}
Committed: https://chromium.googlesource.com/chromium/src/+/e017cf7ef61b27d0e94380f00b78fdf7f1e1973d

[Tom (Use chromium acct), 2017-02-22 19:25:28]

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

[Tom (Use chromium acct), 2017-02-22 19:26:17]

erg PTAL
This fixes the build failure on the 32 bit linux builder which caused the revert
of the gtk3 switch.

[commit-bot: I haz the power, 2017-02-22 19:26:18]

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

[Elliot Glaysher, 2017-02-22 19:28:46]

"linux/debian_wheezy_i386-sysroot/usr/include/linux/stddef.h redefines NULL to
0, which breaks -Wsentinel."

ಠ_ಠ 

LGTM for the fix

[commit-bot: I haz the power, 2017-02-22 20:58:48]

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

[commit-bot: I haz the power, 2017-02-22 20:58:49]

Dry run: This issue passed the CQ dry run.

[Tom (Use chromium acct), 2017-02-22 21:00:11]

The CQ bit was checked by thomasanderson@google.com

[commit-bot: I haz the power, 2017-02-22 21:00:59]

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, 2017-02-22 21:07:32]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487797211842800, "parent_rev":
"c0f16eacc2e54b2a6c0c3a4f6f2766f59d582827", "commit_rev":
"e017cf7ef61b27d0e94380f00b78fdf7f1e1973d"}

[commit-bot: I haz the power, 2017-02-22 21:08:07]

Description was changed from

==========
Gtk: Change NULL to nullptr

This CL changes all instances of NULL to nullptr in libgtkui.

The process was:
$ find chrome/browser/ui/libgtkui -type f | xargs sed
  -i 's/NULL/nullptr/g'
$ git cl format

In addition, remove a workaround that redefines NULL to nullptr since
all references to NULL have been removed.
https://cs.chromium.org/chromium/src/chrome/browser/ui/libgtkui/gtk_ui.cc?rcl...

BUG=79722
R=erg@chromium.org
==========

to

==========
Gtk: Change NULL to nullptr

This CL changes all instances of NULL to nullptr in libgtkui.

The process was:
$ find chrome/browser/ui/libgtkui -type f | xargs sed
  -i 's/NULL/nullptr/g'
$ git cl format

In addition, remove a workaround that redefines NULL to nullptr since
all references to NULL have been removed.
https://cs.chromium.org/chromium/src/chrome/browser/ui/libgtkui/gtk_ui.cc?rcl...

BUG=79722
R=erg@chromium.org

Review-Url: https://codereview.chromium.org/2707313002
Cr-Commit-Position: refs/heads/master@{#452198}
Committed:
https://chromium.googlesource.com/chromium/src/+/e017cf7ef61b27d0e94380f00b78...
==========

[commit-bot: I haz the power, 2017-02-22 21:08:08]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/e017cf7ef61b27d0e94380f00b78...