Remove base/platform_file.*

Remove base/platform_file.*

Fix remaining users of platform_file.h

BUG=322664
R=brettw@chromium.org
TBR=thestig@chromium.org, satorux@chromium.org, jochen@chromium.org, rockot@chromium.org, viettrungluu@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=279330

[rvargas (doing something else), 2014-06-23 18:19:58]

Brett, PTAL

TBR owners outside of base.

[Lei Zhang, 2014-06-23 18:58:17]

chrome/ lgtm

[viettrungluu, 2014-06-23 18:59:31]

lgtm

mojo lgtm

[brettw, 2014-06-23 19:45:04]

woot LGTM

[rvargas (doing something else), 2014-06-23 19:49:08]

The CQ bit was checked by rvargas@chromium.org

[commit-bot: I haz the power, 2014-06-23 19:50:42]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rvargas@chromium.org/326383005/80001

[commit-bot: I haz the power, 2014-06-23 20:10:13]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  chromium_presubmit on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/chromium_presubmit/bu...)
  ios_rel_device_ninja on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/ios_rel_device_ninja/...)
  linux_chromium_chromeos_clang_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_chrome...)
  win_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_rel/buil...)
  linux_gpu on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/linux_gpu/builds/...)
  mac_gpu on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/mac_gpu/builds/20466)
  win_gpu on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/win_gpu/builds/24310)

[commit-bot: I haz the power, 2014-06-23 20:12:31]

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

[commit-bot: I haz the power, 2014-06-23 20:12:32]

Try jobs failed on following builders:
  ios_rel_device_ninja on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/ios_rel_device_ninja/...)
  mac_gpu on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/mac_gpu/builds/20476)

[rvargas (doing something else), 2014-06-23 23:32:16]

The CQ bit was checked by rvargas@chromium.org

[commit-bot: I haz the power, 2014-06-23 23:37:16]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rvargas@chromium.org/326383005/100001

[rvargas (doing something else), 2014-06-24 00:09:01]

The CQ bit was unchecked by rvargas@chromium.org

[rvargas (doing something else), 2014-06-24 01:10:09]

The CQ bit was checked by rvargas@chromium.org

[commit-bot: I haz the power, 2014-06-24 01:10:58]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rvargas@chromium.org/326383005/120001

[commit-bot: I haz the power, 2014-06-24 05:40:18]

Change committed as 279330