tree e1dfab936a6c607d7478b09e3b2a95ce5567b260
parent 468978294e130807cc37ed295115863c2d7bacaa
author Elliott Hughes <enh@google.com> 1443383737 -0700
committer Elliott Hughes <enh@google.com> 1443822538 -0700

Speed up adb sync.

Sending the SEND/DATA/DONE packets all in one write makes small file and
symbolic link transfer orders of magnitude faster. Transferring all the
symbolic links in /system/bin or all the cacerts in /system/etc goes down
from about 6s in each case to less than 0.5s.

Change-Id: Ia1706cef25535d0b685d3744241a0557a52b22ff