Make content::PermissionType an enum class.

Make content::PermissionType an enum class.

It allows us to forward declare it instead of including the file everywhere.

BUG=437770
Committed: https://crrev.com/e2a873b6f8f4251a491891c5d5d825b25150a032
Cr-Commit-Position: refs/heads/master@{#322164}

[mlamouri (slow - plz ping), 2015-03-24 16:12:38]

mlamouri@chromium.org changed reviewers:
+ jochen@chromium.org, torne@chromium.org

[mlamouri (slow - plz ping), 2015-03-24 16:12:39]

jochen@, could you review these files:
  chrome/browser/content_settings/permission_context_uma_util.cc
  content/browser/frame_host/render_frame_host_impl.cc
  content/public/browser/content_browser_client.h
  content/public/browser/permission_type.h
  content/shell/browser/layout_test/layout_test_content_browser_client.cc
  content/shell/browser/layout_test/layout_test_content_browser_client.h
  content/shell/browser/shell_content_browser_client.cc

torne@, could you review these files:
  android_webview/browser/aw_content_browser_client.cc

Thanks! :)

[Torne, 2015-03-24 16:36:32]

android_webview LGTM

[mlamouri (slow - plz ping), 2015-03-25 10:27:04]

Fixed some compile issues (hopefully all). PTAL>

[mlamouri (slow - plz ping), 2015-03-25 11:45:36]

Building locally for Android and Linux.

PTAL.

[jochen (gone - plz use gerrit), 2015-03-25 12:29:11]

lgtm

[mlamouri (slow - plz ping), 2015-03-25 12:36:13]

The CQ bit was checked by mlamouri@chromium.org

[mlamouri (slow - plz ping), 2015-03-25 12:36:14]

The patchset sent to the CQ was uploaded after l-g-t-m from torne@chromium.org
Link to the patchset: https://codereview.chromium.org/1020683003/#ps40001
(title: "fix android compile")

[commit-bot: I haz the power, 2015-03-25 12:36:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1020683003/40001

[commit-bot: I haz the power, 2015-03-25 13:21:02]

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

[commit-bot: I haz the power, 2015-03-25 13:21:04]

Try jobs failed on following builders:
  win_chromium_x64_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[mlamouri (slow - plz ping), 2015-03-25 13:54:52]

The CQ bit was checked by mlamouri@chromium.org

[commit-bot: I haz the power, 2015-03-25 13:55:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1020683003/40001

[commit-bot: I haz the power, 2015-03-25 15:06:24]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-03-25 15:07:16]

Patchset 3 (id:??) landed as
https://crrev.com/e2a873b6f8f4251a491891c5d5d825b25150a032
Cr-Commit-Position: refs/heads/master@{#322164}