<https://webkit.org/b/120909>

Reviewed by Anders Carlsson.

Move DOMConstructorWithDocument out of JSDOMBinding.h to its own header.
This was the only part of JSDOMBinding.h that needed Document's definition.

This reduces the include dependency graph of many bindings files.

* WebCore.xcodeproj/project.pbxproj:
* bindings/js/DOMConstructorWithDocument.h:
* bindings/js/JSDOMBinding.cpp:
* bindings/js/JSDOMBinding.h:
* bindings/scripts/CodeGeneratorJS.pm:
* bindings/scripts/CodeGeneratorGObject.pm:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@155229 268f45cc-cd09-0410-ab3c-d52691b4dbfc