Revert 186643 - Caused a 10% regression on SunSpider benchmark

Revert 186643 - Caused a 10% regression on SunSpider benchmark

BUG=180937
> Set up V8 bindings for extension/app APIs when they're first used, not on
> context creation. This should gives us a significant reduction in extension/app
> startup time and slightly better memory usage.
> 
> It also gives us better error messages, the chance to complete the 
> implementation of API features, and eventually the ability to expose select
> extension APIs (e.g. extension.sendMessage) to web pages.
> 
> Resubmitting: changes made to resubmit this patch reviewed in: https://codereview.chromium.org/12378077/
> 
> BUG=163678, 120070, 55316, 177163
> TBR=ben@chromium.org
> 
> Review URL: https://chromiumcodereview.appspot.com/11571014

TBR=cduvall@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=186748

[tonyg, 2013-03-07 18:38:38]

Committed patchset #1 manually as r186748.