Use constants instead of resources for ellipsis.

All supported locales use only U+2025 and U+2026 to represent
ellipses, and it will unlikely change in future. Given translated
resources are inconsistent and often use three dots it is safer
to use constants instead of resources.

(cherry-pick of ed0daa93e48d38e54a7ad1c99c461510a4c07599.)

Bug: 18542179
Change-Id: I51a6cb903f62f739fbadd6b78e5765c0028d641a
2 files changed