StrictMode: class instance limits (track object "leaks")

Change-Id: I2db5a19060c2013078feb88a91caf655469b2f98
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index 2ef85d5..9e9a4f2 100755
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -6817,6 +6817,9 @@
             if (info.durationMillis != -1) {
                 sb.append("Duration-Millis: ").append(info.durationMillis).append("\n");
             }
+            if (info.numInstances != -1) {
+                sb.append("Instance-Count: ").append(info.numInstances).append("\n");
+            }
             if (info.tags != null) {
                 for (String tag : info.tags) {
                     sb.append("Span-Tag: ").append(tag).append("\n");