Revert of Changes exception for gyp files to only gyp files in build/

Revert of Changes exception for gyp files to only gyp files in build/ (patchset #1 id:1 of https://codereview.chromium.org/512693004/)

Reason for revert:
*SIGH* Encountered another problem. See
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...
. Reverting again.

Original issue's description:
> Changes exception for gyp files to only gyp files in build/
> 
> I changed analyzer such that if a gyp file (or an included gypi file)
> changes all targets in the gyp file are marked as changed. This means
> I should no longer have to special case gyp files. I'm leaving the
> exception in place for any gyp files in build as any change to those
> really needs to recompile the world.
> 
> BUG=109173
> TEST=none
> R=thakis@chromium.org
> 
> Committed to pending queue: https://chromium.googlesource.com/chromium/src/+/5110e8b
> 
> Committed: https://chromium.googlesource.com/chromium/src/+/e53e29fc161f96871160f6db39919752a0376333

TBR=thakis@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=109173
Committed: https://crrev.com/7e453d5619cc36d21d305b0ea7d708897bf341d7
Cr-Commit-Position: refs/heads/master@{#293187}

[sky, 2014-09-03 19:59:32]

Created Revert of Changes exception for gyp files to only gyp files in build/

[commit-bot: I haz the power, 2014-09-03 20:00:26]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/sky@chromium.org/537683002/1

[commit-bot: I haz the power, 2014-09-03 20:03:17]

Committed patchset #1 (id:1) as 41d9952dc8832419c01807d222338156cd663897

[commit-bot: I haz the power, 2014-09-10 03:27:25]

Patchset 1 (id:??) landed as
https://crrev.com/7e453d5619cc36d21d305b0ea7d708897bf341d7
Cr-Commit-Position: refs/heads/master@{#293187}