Updates statsd atoms.proto with small changes.

Renames the apphook atom to be more descriptive. Renames time
suffixes to match more clear convention (ms and msec are ambiguous).

Adds a field to CPU active time that's required for the metrics
to be usable.

Test: Test that statsd can still build.
Change-Id: I94866510738db994e8d757260f30e599ba995dbd
diff --git a/cmds/statsd/src/metrics/MetricsManager.cpp b/cmds/statsd/src/metrics/MetricsManager.cpp
index dd6735b..53cb193 100644
--- a/cmds/statsd/src/metrics/MetricsManager.cpp
+++ b/cmds/statsd/src/metrics/MetricsManager.cpp
@@ -186,7 +186,7 @@
         return;
     }
 
-    if (event.GetTagId() == android::util::APP_HOOK) { // Check that app hook fields are valid.
+    if (event.GetTagId() == android::util::APP_BREADCRUMB_REPORTED) { // Check that app hook fields are valid.
         // TODO: Find a way to make these checks easier to maintain if the app hooks get changed.
         status_t err = NO_ERROR;