[Mac] Set CFBundleDocumentTypes for PDF in the Info.plist directly.

[Mac] Set CFBundleDocumentTypes for PDF in the Info.plist directly.

This was previously added at build-time using tweak_info_plist.py, but now that
Chromium includes Pdfium, Chromium.app and Chrome.app both always support PDF.

TEST=Chromium and Chrome are both registered to open PDF documents.
R=thakis@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=275088

[Nico, 2014-06-04 22:27:13]

\o/

Is the PDF plugin bundled with Chromium yet? lgtm if so.

[Robert Sesek, 2014-06-04 22:33:30]

On 2014/06/04 22:27:13, Nico (away) wrote:
> \o/
> 
> Is the PDF plugin bundled with Chromium yet? lgtm if so.

Yup! I right clicked and chose "Open With Chromium" :)

[Robert Sesek, 2014-06-04 22:44:18]

The CQ bit was checked by rsesek@chromium.org

[commit-bot: I haz the power, 2014-06-04 22:46:43]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rsesek@chromium.org/319493006/1

[commit-bot: I haz the power, 2014-06-05 03:17:58]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_chromium_gn_compile_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_chromium_gn_c...)
  linux_chromium_gn_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_gn_rel...)

[commit-bot: I haz the power, 2014-06-05 03:27:41]

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

[commit-bot: I haz the power, 2014-06-05 03:27:42]

Try jobs failed on following builders:
  linux_chromium_gn_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_gn_rel...)

[Robert Sesek, 2014-06-05 12:32:01]

The CQ bit was checked by rsesek@chromium.org

[commit-bot: I haz the power, 2014-06-05 12:33:14]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rsesek@chromium.org/319493006/1

[commit-bot: I haz the power, 2014-06-05 14:10:24]

Change committed as 275088