Remove PDF extension dependencies from grd files

Remove PDF extension dependencies from grd files

This removes unnecessary PDF dependencies from component_extension_resources.grd and browser_resources.grd.
These particular files get flattened into the HTML and so are not needed in the
grd files. 

BUG=363909
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=266844

[Lei Zhang, 2014-04-29 05:04:01]

lgtm

[raymes, 2014-04-29 05:23:06]

The CQ bit was checked by raymes@chromium.org

[commit-bot: I haz the power, 2014-04-29 05:24:03]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/raymes@chromium.org/251813008/20001

[commit-bot: I haz the power, 2014-04-29 06:04:28]

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

[commit-bot: I haz the power, 2014-04-29 06:04:29]

Try jobs failed on following builders:
  tryserver.chromium on mac_chromium_rel

[raymes, 2014-04-29 06:06:13]

The CQ bit was checked by raymes@chromium.org

[commit-bot: I haz the power, 2014-04-29 06:06:39]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/raymes@chromium.org/251813008/20001

[commit-bot: I haz the power, 2014-04-29 06:54:34]

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

[commit-bot: I haz the power, 2014-04-29 06:54:35]

Try jobs failed on following builders:
  tryserver.chromium on chromium_presubmit

[Lei Zhang, 2014-04-29 06:59:28]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2014-04-29 07:00:19]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/raymes@chromium.org/251813008/20001

[commit-bot: I haz the power, 2014-04-29 11:20:51]

Change committed as 266844