[chromium] move Tools.gyp, switch build-webkit --chromium to All.gyp

[chromium] move Tools.gyp, switch build-webkit --chromium to All.gyp
https://bugs.webkit.org/show_bug.cgi?id=76505

Reviewed by Tony Chang.

.:

Update with newly-generated files.

* .gitignore:

Source/WebKit/chromium:

Update path to Tools/DumpRenderTree/DumpRenderTree.gyp/DumpRenderTree.gyp.

* All.gyp:
* gyp_webkit:
- change to using All.gyp
- change build_webkit_exes_from_webkit_gyp to 0

Tools:

Update chromium build script to use All.gyp instead of WebKit.gyp

* DumpRenderTree/DumpRenderTree.gyp/DumpRenderTree.gyp: Renamed from Source/WebKit/chromium/Tools.gyp.
* Scripts/webkitdirs.pm:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105330 268f45cc-cd09-0410-ab3c-d52691b4dbfc