This is needed to avoid platform-specific define conflicts, specifically
TextTrack::ERROR conflicts with a windows define.
https://bugs.webkit.org/show_bug.cgi?id=70951

Reviewed by Darin Adler.

Source/WebCore:

Test: media/track/track-constants.html

* bindings/scripts/CodeGenerator.pm:
(GenerateCompileTimeCheckForEnumsIfNeeded):
    Check for [Reflect] and assign name accordingly.

* bindings/scripts/test/CPP/WebDOMTestObj.h:  Update test file.
* bindings/scripts/test/JS/JSTestObj.cpp:  Update test file.
(WebCore::jsTestObjCONST_JAVASCRIPT):
* bindings/scripts/test/JS/JSTestObj.h:  Update test file.
* bindings/scripts/test/ObjC/DOMTestObj.h:  Update test file.
* bindings/scripts/test/TestObj.idl:  Update test file.
* bindings/scripts/test/V8/V8TestObj.cpp:  Update test file.

* html/LoadableTextTrack.cpp: Use new DOM const name.
(WebCore::LoadableTextTrack::cueLoadingStarted):
(WebCore::LoadableTextTrack::cueLoadingCompleted):
* html/TextTrack.cpp:  Use new DOM const name.
(WebCore::TextTrack::TextTrack):
(WebCore::TextTrack::setMode):
* html/TextTrack.h:  Use new DOM const name.
* html/TextTrack.idl:  Use Reflect for ERROR, but leave other DOM const names.

LayoutTests:

* media/track/track-constants-expected.txt: Added.
* media/track/track-constants.html: Added.
* media/track/track-load-error-readyState.html:  Updated with new const name.
* media/track/track-load-from-element-readyState.html:  Updated with new const name.
* media/track/track-load-from-src-readyState.html:  Updated with new const name.

VIDEO_TRACK is not enabled on these ports, so skipping this test:
* platform/mac/Skipped:
* platform/win/Skipped:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@99027 268f45cc-cd09-0410-ab3c-d52691b4dbfc