Implement event logging for intent firewall

Change-Id: If79052d07f3e5c02cfdbd0dd00026b01110045c2
diff --git a/services/java/com/android/server/EventLogTags.logtags b/services/java/com/android/server/EventLogTags.logtags
index 8bc2da2..59577ad 100644
--- a/services/java/com/android/server/EventLogTags.logtags
+++ b/services/java/com/android/server/EventLogTags.logtags
@@ -157,3 +157,8 @@
 # ConfigUpdateInstallReceiver.java
 # ---------------------------
 51300 config_install_failed (dir|3)
+
+# ---------------------------
+# IntentFirewall.java
+# ---------------------------
+51400 ifw_intent_matched (Intent Type|1|5),(Component Name|3),(Caller Uid|1|5),(Caller Pkg Count|1|1),(Caller Pkgs|3),(Action|3),(MIME Type|3),(URI|3),(Flags|1|5)