adb: report progress for small files.

Bug: http://b/27407725
Change-Id: I7515144402a487fb3d4d403e2f5f82423c1b5ed6
(cherry picked from commit 9fd2f77dcce09aa38bf8f1798ebaac2abeef1598)
diff --git a/adb/file_sync_client.cpp b/adb/file_sync_client.cpp
index 3a81ce6..cdbff11 100644
--- a/adb/file_sync_client.cpp
+++ b/adb/file_sync_client.cpp
@@ -188,6 +188,7 @@
         WriteOrDie(lpath, rpath, &buf[0], (p - &buf[0]));
         expect_done_ = true;
         total_bytes_ += data_length;
+        ReportProgress(rpath, data_length, data_length);
         return true;
     }