Move HTMLViewer out of mojo namespace

Move HTMLViewer et. al. out of mojo namespace

BUG=

Committed: https://crrev.com/1157ffee59acb5708e30e7ce7f2c0ea9e45943e8
Cr-Commit-Position: refs/heads/master@{#309110}

[DaveMoore, 2014-12-17 00:10:57]

git cl format result

[DaveMoore, 2014-12-17 00:30:28]

Small cleanup

[DaveMoore, 2014-12-17 00:31:42]

davemoore@chromium.org changed reviewers:
+ jamesr@chromium.org

[jamesr, 2014-12-17 00:45:59]

I think these should still be in *a* namespace - symbols in the global namespace
run the risk of collisions and my reading of
http://google-styleguide.googlecode.com/svn/trunk/cppguide.html#Namespaces is
that they're required.  Can you put these types in namespace html_viewer?

[DaveMoore, 2014-12-17 16:00:01]

Put everything in html_viewer namespace

[DaveMoore, 2014-12-17 16:23:45]

Put everything in html_viewer namespace

[jamesr, 2014-12-17 18:34:39]

lgtm

[DaveMoore, 2014-12-17 18:34:55]

The CQ bit was checked by davemoore@chromium.org

[commit-bot: I haz the power, 2014-12-17 18:36:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/808553007/80001

[commit-bot: I haz the power, 2014-12-17 18:54:54]

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

[commit-bot: I haz the power, 2014-12-17 18:54:55]

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

[DaveMoore, 2014-12-18 18:28:47]

Fix ax_provider unittest

[DaveMoore, 2014-12-18 18:30:14]

The CQ bit was checked by davemoore@chromium.org

[commit-bot: I haz the power, 2014-12-18 18:31:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/808553007/100001

[commit-bot: I haz the power, 2014-12-18 18:49:30]

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

[commit-bot: I haz the power, 2014-12-18 18:49:31]

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

[DaveMoore, 2014-12-18 22:29:47]

Fix merge mistake in test

[DaveMoore, 2014-12-18 22:34:49]

Fix merge mistake in test

[DaveMoore, 2014-12-18 22:34:58]

The CQ bit was checked by davemoore@chromium.org

[commit-bot: I haz the power, 2014-12-18 22:35:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/808553007/140001

[commit-bot: I haz the power, 2014-12-19 00:10:07]

Committed patchset #8 (id:140001)

[commit-bot: I haz the power, 2014-12-19 00:11:41]

Patchset 8 (id:??) landed as
https://crrev.com/1157ffee59acb5708e30e7ce7f2c0ea9e45943e8
Cr-Commit-Position: refs/heads/master@{#309110}