Move DstCoordTexture to GrXP, rename and remove the word "copy" from dstcopytexture names.

Committed: https://skia.googlesource.com/skia/+/bb106b5f6ee18f7453b63f3a95f421b60a957f39

Review URL: https://codereview.chromium.org/1132093004
26 files changed