Reland of Android: Add support for TraceEvent before the native library is loaded.

chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.init;
 
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
@@ skipping 183 matching lines @@
     }
 
     /**
      * Extending classes should override {@link AsyncInitializationActivity#preInflationStartup()},
      * {@link AsyncInitializationActivity#setContentView()} and
      * {@link AsyncInitializationActivity#postInflationStartup()} instead of this call which will
      * be called on that order.
      */
     @Override
     protected final void onCreate(Bundle savedInstanceState) {
+        TraceEvent.begin("AsyncInitializationActivity.onCreate()");
+        onCreateInternal(savedInstanceState);
+        TraceEvent.end("AsyncInitializationActivity.onCreate()");
+    }
+
+    private final void onCreateInternal(Bundle savedInstanceState) {
         if (DocumentModeAssassin.getInstance().isMigrationNecessary()) {
             super.onCreate(null);
 
             // Kick the user to the MigrationActivity.
             UpgradeActivity.launchInstance(this, getIntent());
 
             // Don't remove this task -- it may be a DocumentActivity that exists only in Recents.
             finish();
             return;
         }
@@ skipping 283 matching lines @@
                             getDecorView().setVisibility(View.GONE);
                         }
                         getViewTreeObserver().removeOnPreDrawListener(mPreDrawListener);
                     }
                 });
                 return true;
             }
         };
     }
 }