WebFrame exports size information for remote frames.

WebFrame exports size information for remote frames.

WebFrameImpl::setIsRemote() becomes an initialization point for remote
frames, called when a child frame is swapped out. Right now it only
causes necessary rendering parameters to be exported and sent to the
new child frame renderer process, later on it can be extended to
trigger the RemoteFrame creation process.

The size information is necessary for the child frame renderer to know
the viewport size that it is rendering into. If the frame size changes
dynamically we currently don't have a way to propagate this. FrameView
seems like the best place to trap a size change event but the current
plan is to get rid of that for out of process iframes. We'll have to
add that when we have a better idea of how RemoteFrame rendering will
work.

R=eseidel@chromium.org
BUG=325803
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=167201

[kenrb, 2014-02-04 16:57:26]

Eric: PTAL?

[kenrb, 2014-02-11 21:12:40]

Eric: ping? (I know you've been traveling, just making sure this stays on your
list)

[eseidel, 2014-02-14 00:12:42]

lgtm

OK.

[kenrb, 2014-02-14 14:28:16]

The CQ bit was checked by kenrb@chromium.org

[commit-bot: I haz the power, 2014-02-14 14:28:32]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kenrb@chromium.org/135163006/30001

[commit-bot: I haz the power, 2014-02-14 15:42:46]

Change committed as 167201