Revert of Rewrite platform headers in public/web/ to public/platform/...

Revert of Rewrite platform headers in public/web/ to public/platform/... (https://codereview.chromium.org/189703002/)

Reason for revert:
Broke Windows, Mac, and ChromeOS build.


Original issue's description:
> Rewrite platform headers in public/web/ to public/platform/...
> 
> Includes of this style are more consistent with the rest of the project and
> easier to verify with DEPS. For consistency, includes in public/web/ of other
> headers in public/web/ are rewritten to list the public/web/ portion as well.
> 
> BUG=350097
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=169597

TBR=abarth@chromium.org,jamesr@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=350097
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=169600

[tkent, 2014-03-20 03:39:21]

Created Revert of Rewrite platform headers in public/web/ to public/platform/...

[commit-bot: I haz the power, 2014-03-20 03:39:24]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tkent@chromium.org/205153006/1

[commit-bot: I haz the power, 2014-03-20 03:41:07]

Change committed as 169600