🔍 Add first run dialog for selecting search engine

chrome/android/java/src/org/chromium/chrome/browser/firstrun/DefaultSearchEngineFirstRunFragment.java

Index: chrome/android/java/src/org/chromium/chrome/browser/firstrun/DefaultSearchEngineFirstRunFragment.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/firstrun/DefaultSearchEngineFirstRunFragment.java b/chrome/android/java/src/org/chromium/chrome/browser/firstrun/DefaultSearchEngineFirstRunFragment.java
new file mode 100644
index 0000000000000000000000000000000000000000..ea4cad957c4a70cd12c45efe882b1e8658572312
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/firstrun/DefaultSearchEngineFirstRunFragment.java
@@ -0,0 +1,60 @@
+// Copyright 2017 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.firstrun;
+
+import android.app.Fragment;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.locale.DefaultSearchEngineDialogHelper;
+import org.chromium.chrome.browser.locale.LocaleManager;
+import org.chromium.chrome.browser.search_engines.TemplateUrlService;
+import org.chromium.chrome.browser.widget.RadioButtonLayout;
+
+/** A {@link Fragment} that presents a set of search engines for the user to choose from. */
+public class DefaultSearchEngineFirstRunFragment
+        extends FirstRunPage implements TemplateUrlService.LoadListener {
+    private DefaultSearchEngineDialogHelper mHelper;
+
+    /** Layout that displays the available search engines to the user. */
+    private RadioButtonLayout mEngineLayout;
+
+    /** The button that lets a user proceed to the next page after an engine is selected. */
+    private Button mButton;
+
+    @Override
+    public View onCreateView(
+            LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View rootView = inflater.inflate(
+                R.layout.default_search_engine_first_run_fragment, container, false);
+        mEngineLayout = (RadioButtonLayout) rootView.findViewById(R.id.engine_controls);
+        mButton = (Button) rootView.findViewById(R.id.button_primary);
+        mButton.setEnabled(false);
+
+        TemplateUrlService.getInstance().registerLoadListener(this);
+        if (!TemplateUrlService.getInstance().isLoaded()) TemplateUrlService.getInstance().load();
+
+        return rootView;
+    }
+
+    @Override
+    public void onTemplateUrlServiceLoaded() {
+        TemplateUrlService.getInstance().unregisterLoadListener(this);
+
+        int dialogType = LocaleManager.getInstance().getSearchEnginePromoShowType();
+        Runnable dismissRunnable = new Runnable() {
+            @Override
+            public void run() {
+                advanceToNextPage();
+            }
+        };
+        mHelper = new DefaultSearchEngineDialogHelper(
+                dialogType, mEngineLayout, mButton, dismissRunnable);
+    }
+}