Move extensions bindings code out of //chrome

Move extensions bindings code out of //chrome

This moves several native handlers out of //chrome/renderer/extensions and into
//extensions/renderer.

Many of the changes are mechanical. Where applicable,
ChromeV8Extension has been wiped out.

BUG=359836
R=yoz@chromium.org
TBR=reed@google.com for skia +DEPS
TBR=ericu@chromium.org for fileapi +DEPS
TBR=eseidel@chromium.org for WebKit/public/platform +DEPS
TBR=sky@chromium.org for chrome/test
TBR=maruel@chromium.org for PRESUBMIT.py

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=264413

[Ken Rockot(use gerrit already), 2014-04-16 02:21:35]

Yawz, might you PTAL?

[Ken Rockot(use gerrit already), 2014-04-16 18:55:52]

Well I lied. It turns out there were only ~5 additional files worth moving, and
I didn't want to block Dispatcher refactoring on yet another small mechanical
move CL. I've just included those files in this CL now. No longer a two-parter.
I hope that's OK.

[Yoyo Zhou, 2014-04-16 22:42:21]

LGTM

https://chromiumcodereview.appspot.com/235943018/diff/20001/chrome/renderer/e...
File chrome/renderer/extensions/dispatcher.cc (right):

https://chromiumcodereview.appspot.com/235943018/diff/20001/chrome/renderer/e...
chrome/renderer/extensions/dispatcher.cc:345: explicit
ProcessInfoNativeHandler(ScriptContext* context,
nit: Usually we only need explicit if the implicit conversion is possible.

[Yoyo Zhou, 2014-04-16 22:42:49]

P.S. Seems like we're soon to be able to delete ChromeV8Extension.

[Ken Rockot(use gerrit already), 2014-04-16 22:45:27]

On 2014/04/16 22:42:49, Yoyo Zhou wrote:
> P.S. Seems like we're soon to be able to delete ChromeV8Extension.

Yep, my next CL does exactly that, because it makes Dispatcher easier to move :)

[Ken Rockot(use gerrit already), 2014-04-16 22:45:51]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2014-04-16 22:47:06]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rockot@chromium.org/235943018/20001

[Ken Rockot(use gerrit already), 2014-04-16 22:47:45]

The CQ bit was unchecked by rockot@chromium.org

[Ken Rockot(use gerrit already), 2014-04-16 23:37:27]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2014-04-16 23:38:22]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rockot@chromium.org/235943018/40001

[commit-bot: I haz the power, 2014-04-17 04:37:38]

Change committed as 264413