Log uploader is uploading incomplete files.
Log uploader is uploading incomplete files.

Added a call to flush to fix that.

BUG=376490
TBR=stip@google.com

Review URL: https://codereview.chromium.org/321803002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@275821 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build