Mojo: Have |ProxyMessagePipeEndpoint|s constructed with a |ChannelEndpoint|.

Mojo: Have |ProxyMessagePipeEndpoint|s constructed with a |ChannelEndpoint|.

This eliminates the need for |ProxyMessagePipeEndpoint::Attach()|.

R=brettw@chromium.org

Committed: https://crrev.com/23ae8173cca87c9dd9ca71cf3142f75a88e43919
Cr-Commit-Position: refs/heads/master@{#296485}

[viettrungluu, 2014-09-24 18:00:52]

viettrungluu@chromium.org changed reviewers:
+ brettw@chromium.org

[viettrungluu, 2014-09-24 18:00:53]

-> brettw, since I hear he's eagerly looking for reviews to do

(This is part of a sequence of refactoring CLs. It might be helpful to see the
partial end-state in which the "ProxyMessagePipeEndpoint" really has just become
a dumb proxy: https://codereview.chromium.org/604443002/ .)

[brettw, 2014-09-24 19:04:03]

lgtm

[viettrungluu, 2014-09-24 19:15:42]

The CQ bit was checked by viettrungluu@chromium.org

[commit-bot: I haz the power, 2014-09-24 19:17:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/588193004/1

[commit-bot: I haz the power, 2014-09-24 19:23:24]

Committed patchset #1 (id:1) as 27c49cce6da4553bda299b35fdf41d84ab58ecc5

[commit-bot: I haz the power, 2014-09-24 19:24:13]

Patchset 1 (id:??) landed as
https://crrev.com/23ae8173cca87c9dd9ca71cf3142f75a88e43919
Cr-Commit-Position: refs/heads/master@{#296485}