[chromium] Remove forwarding headers for WebLayer APIs
https://bugs.webkit.org/show_bug.cgi?id=73729

Reviewed by Adam Barth.

These are no longer necessary.

* WebKit.gyp:
* public/WebContentLayer.h: Removed.
* public/WebContentLayerClient.h: Removed.
* public/WebExternalTextureLayer.h: Removed.
* public/WebLayer.h: Removed.
* public/WebLayerClient.h: Removed.
* public/WebLayerTreeView.h: Removed.
* public/WebLayerTreeViewClient.h: Removed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@102500 268f45cc-cd09-0410-ab3c-d52691b4dbfc
9 files changed