Change daemonize logic in watchdog and add timeout to file system read.

go/deps.yaml

 package: .
 import:
 - package: github.com/dustin/go-humanize
   version: master
   repo: https://chromium.googlesource.com/external/github.com/dustin/go-humanize.git
 - package: github.com/golang/protobuf
   version: master
   repo: https://chromium.googlesource.com/external/github.com/golang/protobuf.git
   subpackages:
   - jsonpb
@@ skipping 88 matching lines @@
   - log
   - mail
   - memcache
   - module
   - remote_api
   - taskqueue
   - urlfetch
   - user
   - cmd/aedeploy
 - package: cloud.google.com/go
-  version: master
+  # TODO(crbug.com/645648): Fix test breakages when gocloud gets rolled past
+  #                         this revision.
+  version: bdbde4dc7e9c0d48d900460402be1d4a7c0902cf
   repo: https://code.googlesource.com/gocloud.git
   subpackages:
   - bigtable
   - compute/metadata
   - pubsub
   - storage
 - package: google.golang.org/genproto
   version: master
   repo: https://chromium.googlesource.com/external/github.com/google/go-genproto.git
   subpackages:
@@ skipping 73 matching lines @@
   version: master
   repo: https://chromium.googlesource.com/external/github.com/go-sql-driver/mysql.git
 - package: github.com/mitchellh/go-homedir
   version: master
   repo: https://chromium.googlesource.com/external/github.com/mitchellh/go-homedir.git
 - package: golang.org/x/mobile
   version: master
   repo: https://go.googlesource.com/mobile.git
   subpackages:
   - cmd/gomobile
+- package: github.com/VividCortex/godaemon
+  repo: https://chromium.googlesource.com/external/github.com/VividCortex/godaemon.git
+  version: master