Adding some tracing sections around launcher startup

Bug: 29007436
Change-Id: I53afd9130a2dc70a2223f1623e862faf44370f26
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index c2e7f1a..fe65b31 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -25,6 +25,7 @@
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.UserManagerCompat;
+import com.android.launcher3.config.ProviderConfig;
 import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.util.ConfigMonitor;
@@ -35,6 +36,8 @@
 
 public class LauncherAppState {
 
+    public static final boolean PROFILE_STARTUP = ProviderConfig.IS_DOGFOOD_BUILD;
+
     private final AppFilter mAppFilter;
     @Thunk final LauncherModel mModel;
     private final IconCache mIconCache;