Run the later parts of startup as UI thread tasks

content/public/android/java/src/org/chromium/content/browser/BrowserStartupConfig.java

Index: content/public/android/java/src/org/chromium/content/browser/BrowserStartupConfig.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/BrowserStartupConfig.java b/content/public/android/java/src/org/chromium/content/browser/BrowserStartupConfig.java
new file mode 100644
index 0000000000000000000000000000000000000000..f784c7a678ddc286d984368f63cbd93f70c8f33f
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content/browser/BrowserStartupConfig.java
@@ -0,0 +1,43 @@
+// Copyright 2013 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.content.browser;
+
+import org.chromium.base.CalledByNative;
+import org.chromium.base.JNINamespace;
+/**
+ * This class controls how C++ browser main loop is run.
+ */
+@JNINamespace("content")
+public class BrowserStartupConfig {
+    public interface StartupCallback {
+        void run(int startupResult);
+    }
+
+    private static boolean sBrowserMayStartAsynchronously = false;
+    private static StartupCallback sBrowserStartupCompleteCallback = null;
+
+    @CalledByNative
+    private static boolean browserMayStartAsynchonously() {
+        return sBrowserMayStartAsynchronously;
+    }
+
+    @CalledByNative
+    private static void browserStartupComplete(int result) {
+        if(sBrowserStartupCompleteCallback != null) {
+            sBrowserStartupCompleteCallback.run(result);
+        }
+    }
+
+    /**
+     * Set browser to start asynchronously. May only be called before contentMain.start(). If it
+     * has been called then contentMain.start() will queue up a series of UI tasks to complete
+     * browser initialization.
+     * @param browserStartupCompleteCallback If not null called when browser startup is complete.
+     */
+    public static void setAsync(StartupCallback browserStartupCompleteCallback) {
+        sBrowserMayStartAsynchronously = true;
+        sBrowserStartupCompleteCallback = browserStartupCompleteCallback;
+    }
+}