Third attempt to land change to remove NativeViewportService and

Third attempt to land change to remove NativeViewportService and
ViewManager from mojo_shell.

Original cl was https://codereview.chromium.org/477923004/

BUG=
TBR=ben@chromium.org

Committed: https://crrev.com/9b5afe9fda3e59c856cbfc43367c2719df676af0
Cr-Commit-Position: refs/heads/master@{#295537}

[DaveMoore, 2014-09-18 19:02:41]

The CQ bit was checked by davemoore@chromium.org

[commit-bot: I haz the power, 2014-09-18 19:04:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/578353002/20001

[commit-bot: I haz the power, 2014-09-18 20:03:11]

Committed patchset #2 (id:20001) as 72bc11b5cd84391fd81052d95ce8d8bcc0099c60

[commit-bot: I haz the power, 2014-09-18 20:03:49]

Patchset 2 (id:??) landed as
https://crrev.com/9b5afe9fda3e59c856cbfc43367c2719df676af0
Cr-Commit-Position: refs/heads/master@{#295537}

[DaveMoore, 2014-09-18 21:46:19]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/583573007/ by davemoore@chromium.org.

The reason for reverting is: Fails on 

http://build.chromium.org/p/chromium.win/buildstatus?builder=Win7%20Tests%20%....

[Dan Beam, 2014-09-18 21:46:21]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/577403002/ by dbeam@chromium.org.

The reason for reverting is: all these tests are timing out on Win7 Tests
(dbg)(4):mojo_view_manager_unittests -
https://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20(dbg)(4)/bu...

ViewManagerTest.CantAccessChildrenOfEmbeddedView
ViewManagerTest.SecondEmbedRoot_Service
ViewManagerTest.EmbedWithSameViewId2
ViewManagerTest.EmbedWithSameViewId
ViewManagerTest.ViewsRemovedWhenEmbedding
ViewManagerTest.CantGetViewTreeOfOtherRoots
ViewManagerTest.SetViewVisibilityNotifications
ViewManagerTest.CreateView
ViewManagerTest.ViewHierarchyChangedAddingKnownToUnknown
ViewManagerTest.GetViewTree
ViewManagerTest.ViewHierarchyChangedViews
ViewManagerTest.ReuseDeletedViewId
ViewManagerTest.AddViewWithNoChange
ViewManagerTest.ReorderView
ViewManagerTest.SetViewVisibility
ViewManagerTest.CantModifyChildrenOfEmbeddedView
ViewManagerTest.OnViewInput
ViewManagerTest.CantMoveViewsFromOtherRoot
ViewManagerTest.TwoClientsGetDifferentConnectionIds
ViewManagerTest.SetViewBounds.