Add an activity that allows whitelisted applications to clear all data in Chrome.

chrome/android/java/src/org/chromium/chrome/browser/child_accounts/ResetDataDialogFragment.java

Index: chrome/android/java/src/org/chromium/chrome/browser/child_accounts/ResetDataDialogFragment.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/child_accounts/ResetDataDialogFragment.java b/chrome/android/java/src/org/chromium/chrome/browser/child_accounts/ResetDataDialogFragment.java
new file mode 100644
index 0000000000000000000000000000000000000000..526aa26fc8e4e5ffe732e5153ab1b733a80363d4
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/child_accounts/ResetDataDialogFragment.java
@@ -0,0 +1,65 @@
+// 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.child_accounts;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.support.v7.app.AlertDialog;
+
+import org.chromium.chrome.R;
+
+/**
+ * A dialog that prompts the user to reset all data in Chrome,
+ * as part of the child account setup.
+ */
+public class ResetDataDialogFragment extends DialogFragment {
+
+    /**
+     * Callback interface for the client of the dialog to be notified about the chosen user action.
+     */
+    public interface DialogListener {
+        void onResetData(DialogFragment dialog);
+        void onKeepData(DialogFragment dialog);
+        void onCancel(DialogFragment dialog);
+    }
+
+    private Context mContext;
+    private DialogListener mDialogListener;
+
+    public ResetDataDialogFragment(Context context, DialogListener listener) {
+        mContext = context;
+        mDialogListener = listener;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        return new AlertDialog.Builder(mContext)

[aurimas (slooooooooow), 2015/06/09 17:45:03]

Use R.style.AlertDialogTheme to match the rest of Chrome dialogs.

+                .setMessage(R.string.reset_data_dialog_title)
+                .setPositiveButton(R.string.reset_data_dialog_reset_button,
+                        new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                mDialogListener.onResetData(ResetDataDialogFragment.this);
+                            }
+                        })
+                .setNegativeButton(R.string.reset_data_dialog_reset_button,
+                        new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                mDialogListener.onKeepData(ResetDataDialogFragment.this);
+                            }
+                        }).create();
+    }
+
+    @Override
+    public void onDismiss(DialogInterface dialog) {
+        mDialogListener.onCancel(this);
+        super.onDismiss(dialog);
+    }
+
+}