Alternate NTP: Fix dev tools layout

Alternate NTP: Fix dev tools layout

When docked to the right the dev tool's web view would be cropped.

This bug was due to the way I implemented view layout in r181301.

The dev tool view was being correctly layed out but the subview was not.

To fix this I've removed the container view (DevToolsContainerView). The new code just use the view's auto layout instead.

BUG=173205
TEST=Docked the devtools to the right and opened a new browser window. Verified that the devtools view was correctly layed out.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=181867

[sail, 2013-02-11 01:59:33]

dhollowa: Sorry for the code churn here. The new code should be simpler though.

[dhollowa, 2013-02-11 17:43:27]

lgtm

[commit-bot: I haz the power, 2013-02-11 17:51:22]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/sail@chromium.org/12226086/1

[commit-bot: I haz the power, 2013-02-11 18:16:29]

Sorry for I got bad news for ya.
Compile failed with a clobber build on android_clang_dbg.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android_cl...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-02-11 21:46:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/sail@chromium.org/12226086/1

[commit-bot: I haz the power, 2013-02-12 01:29:07]

Retried try job too often on mac_rel for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...