Disable window tracing on user builds.
- Make window trace shell commands fail gracefully in user builds.
- Dont start the trace thread on user builds.

Bug: 64831661

Test: adb shell cmd window tracing start && adb shell cmd window tracing stop && adb bugreport ~/tmp.zip (Tested on user and eng builds)

Change-Id: I14252ddf8e884a714075383bf803e9f0836696a6
2 files changed