Add TRON logging for bindApplication

Such that we know how much startup latency is the system to blame
and how much of it is the client process to blame.

Test: Open dead app, inspect logs
Change-Id: Ib8d359c2d59ef6f90893928f2b1d4e2ac2590d74
Fixes: 37327717
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index ff99b19..f37bfac 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -3957,6 +3957,11 @@
     // OS: O
     RUNNING_BACKGROUND_APPS_DIALOG = 944;
 
+    // FIELD - The delay from the start of the transition until we just call bindApplication on the
+    // client.
+    // OS: O
+    APP_TRANSITION_BIND_APPLICATION_DELAY_MS = 945;
+
     // ---- End O Constants, all O constants go above this line ----
 
     // Add new aosp constants above this line.