Updates jank metrics in statsd to include uid.

We need the uid to easily know which app to blame for producing the
frame with excessively long render time. Also updates the errors so
it's more obvious if the error is in parsing versus the other checks.

Test: Test that statsd builds and verified CTS test still passes.
Change-Id: Ib6518f2d9fe6f9c78d548b6dcbdb67a0f211ff5c
diff --git a/libs/hwui/JankTracker.cpp b/libs/hwui/JankTracker.cpp
index ab27a0d..cf29e43 100644
--- a/libs/hwui/JankTracker.cpp
+++ b/libs/hwui/JankTracker.cpp
@@ -165,7 +165,7 @@
         ALOGI("%s", ss.str().c_str());
         // Just so we have something that counts up, the value is largely irrelevant
         ATRACE_INT(ss.str().c_str(), ++sDaveyCount);
-        android::util::stats_write(android::util::DAVEY_OCCURRED, ns2ms(totalDuration));
+        android::util::stats_write(android::util::DAVEY_OCCURRED, getuid(), ns2ms(totalDuration));
     }
 }