Enable a minimal content/ build on iOS

Enable a minimal content/ build on iOS

This removes some files from the already-upstreamed iOS content/ gyp
support in order to get a minimal target building while the remaining
content/ changes are upstreamed.

Minor ifdefing is necessary in a few files in order to build them on
iOS; these are included since they are core files without which it's
very difficult to bring up a build at all.

Adds one new class to the ui/ build since it's needed by the content/
code that is now built.

BUG=None


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=157421

[stuartmorgan, 2012-09-14 12:42:20]

Nico: just for ui/ OWNERS to compile one new class for iOS (lots more ui/
upstreaming will be happening now that gfx::Image and Skia are mostly resolved,
but this I wanted to unblock the minimal content build now).

John: For review. content_main_delegate.cc is based on previous discussion; the
other ifdefing should be in the spirit of the decisions made so far, but I'm
happy to tweak as necessary.

(Note that the files I'm removing from the content gypis will return later, but
build them is blocked on other upstreaming that's still in progress, most
notably net/)

[Nico, 2012-09-14 12:53:25]

ui.gyp lgtm

[jam, 2012-09-17 22:19:17]

lgtm

[commit-bot: I haz the power, 2012-09-18 14:04:34]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/stuartmorgan@chromium.org/10933091/4001

[commit-bot: I haz the power, 2012-09-18 18:15:30]

Retried try job too often for step(s) browser_tests

[commit-bot: I haz the power, 2012-09-18 20:29:54]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/stuartmorgan@chromium.org/10933091/4001

[commit-bot: I haz the power, 2012-09-18 21:36:33]

Change committed as 157421