Merge tag android-5.1.0_r1 into AOSP_5.1_MERGE

Change-Id: I394c071cde0e3f1a81fff50e14a36c9665e55ad0
tree: 7216511fe6cced5d69e31306546bb7cea415f1bd
  1. dl/
  2. LICENSE
  3. OWNERS
  4. README.chromium