Rename SkTDLinkedList to SkTInternalLinked list, add some methods useful for forthcoming SkTLList.
Review URL: https://codereview.appspot.com/6858101

git-svn-id: http://skia.googlecode.com/svn/trunk@6643 2bbb7eff-a529-9590-31e7-b0007b416f81
7 files changed