Move BinaryFeatureExtractor and PEImageReader to common.

Move BinaryFeatureExtractor and PEImageReader to common.

This will allow them to be used from a utility process.

BUG=462584
R=mattm@chromium.org
TBR=sky@chromium.org

Committed: https://crrev.com/69ab18b673a13749fd4dfde40f3d04901f51016c
Cr-Commit-Position: refs/heads/master@{#321484}

[grt (UTC plus 2), 2015-03-19 03:44:43]

Hi Matt. This change is purely code motion to enable extracting features from a
utility process. Thanks for taking a look.

[mattm, 2015-03-19 23:13:25]

lgtm

[grt (UTC plus 2), 2015-03-20 00:55:52]

grt@chromium.org changed reviewers:
+ sky@chromium.org

[grt (UTC plus 2), 2015-03-20 00:57:13]

Thanks. Landing with TBR=sky@chromium.org for chrome.gyp and chrome/tools
changes.

[grt (UTC plus 2), 2015-03-20 00:57:19]

The CQ bit was checked by grt@chromium.org

[commit-bot: I haz the power, 2015-03-20 00:57:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1015363003/20001

[commit-bot: I haz the power, 2015-03-20 01:15:57]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-20 01:16:39]

Patchset 2 (id:??) landed as
https://crrev.com/69ab18b673a13749fd4dfde40f3d04901f51016c
Cr-Commit-Position: refs/heads/master@{#321484}