https://bugs.webkit.org/show_bug.cgi?id=117853

Reviewed by Brent Fulgham.

* WebCore.vcxproj/WebCore.vcxproj: Added WebGL source files.
* WebCore.vcxproj/WebCore.vcxproj.filters: Added platform\graphics\opengl and platform\graphics\gpu filters.
* WebCore.vcxproj/WebCorePreBuild.cmd: Copy ANGLE headers and glext.h before building WebCore (which now uses them).
* platform/graphics/ANGLEWebKitBridge.h: Look in newly copied directory for ShaderLang.h.
* platform/graphics/OpenGLShims.h: Include GL/glext.h.
* platform/graphics/gpu/LoopBlinnShader.cpp:
(WebCore::LoopBlinnShader::use): Fixed parameter ordering in call to uniformMatrix4fv.
* platform/graphics/opengl/GLPlatformSurface.cpp:
(WebCore::GLPlatformSurface::createOffScreenSurface): Added notImplemented for non-EGL builds for now.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@151854 268f45cc-cd09-0410-ab3c-d52691b4dbfc