android: Record early toplevel Looper events in tracing.

chrome/android/java/src/org/chromium/chrome/browser/document/ChromeLauncherActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/document/ChromeLauncherActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/document/ChromeLauncherActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/document/ChromeLauncherActivity.java
index 050dad8075ede610cf4769d3a83a43e682eded63..82348ac0daed43e4396c811cc439e4342cad29d5 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/document/ChromeLauncherActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/document/ChromeLauncherActivity.java
@@ -111,7 +111,6 @@ public class ChromeLauncherActivity extends Activity
     public void onCreate(Bundle savedInstanceState) {
         // Third-party code adds disk access to Activity.onCreate. http://crbug.com/619824
         StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
-        TraceEvent.begin("ChromeLauncherActivity");
         TraceEvent.begin("ChromeLauncherActivity.onCreate");
         try {
             super.onCreate(savedInstanceState);
@@ -224,12 +223,6 @@ public class ChromeLauncherActivity extends Activity
     }
 
     @Override
-    public void onStop() {
-        super.onStop();
-        TraceEvent.end("ChromeLauncherActivity");
-    }
-
-    @Override
     public void processWebSearchIntent(String query) {
         Intent searchIntent = new Intent(Intent.ACTION_WEB_SEARCH);
         searchIntent.putExtra(SearchManager.QUERY, query);