Add Brave License on android

BUILD.gn

@@ -80,6 +80,7 @@ if (is_android) {
       "//brave/android/sync/android_sync_words.js",
       "//brave/android/sync/crypto.js",
       "//brave/components/brave_sync/extension/brave-sync/bundles/bundle.js",
+      "//brave/LICENSE.html",
     ]
     deps = [
       "//brave:browser_dependencies",

android/brave_java_sources.gni

@@ -51,6 +51,7 @@ brave_java_sources = [
   "../../brave/android/java/org/chromium/chrome/browser/partnercustomizations/CloseBraveManager.java",
   "../../brave/android/java/org/chromium/chrome/browser/preferences/AppearancePreferences.java",
   "../../brave/android/java/org/chromium/chrome/browser/preferences/BackgroundVideoPlaybackPreference.java",
+  "../../brave/android/java/org/chromium/chrome/browser/preferences/BraveLicensePreferences.java",
   "../../brave/android/java/org/chromium/chrome/browser/preferences/BraveMainPreferencesBase.java",
   "../../brave/android/java/org/chromium/chrome/browser/preferences/BravePreferenceFragment.java",
   "../../brave/android/java/org/chromium/chrome/browser/preferences/BravePreferenceManager.java",

android/java/org/chromium/chrome/browser/preferences/BraveLicensePreferences.java

@@ -0,0 +1,45 @@
+/* Copyright (c) 2020 The Brave Authors. All rights reserved.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.chromium.chrome.browser.preferences;
+
+import android.os.Bundle;
+
+import org.chromium.base.Log;
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.BraveRewardsHelper;
+import org.chromium.chrome.browser.preferences.BravePreferenceFragment;
+import org.chromium.chrome.browser.preferences.TextMessagePreference;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Scanner;
+
+/**
+ * Fragment to display Brave license information.
+ */
+public class BraveLicensePreferences extends BravePreferenceFragment {
+    private static final String TAG = "BraveLicense";
+
+    private static final String PREF_BRAVE_LICENSE_TEXT = "brave_license_text";
+    private static final String ASSET_BRAVE_LICENSE = "LICENSE.html";
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String s) {
+        PreferenceUtils.addPreferencesFromResource(this, R.xml.brave_license_preferences);
+        getActivity().setTitle(R.string.brave_license_text);
+        TextMessagePreference licenseText =
+                (TextMessagePreference) findPreference(PREF_BRAVE_LICENSE_TEXT);
+        try {
+            InputStream in = getActivity().getAssets().open(ASSET_BRAVE_LICENSE);
+            Scanner scanner = new Scanner(in).useDelimiter("\\A");
+            String summary = scanner.hasNext() ? scanner.next() : "";
+            in.close();
+            licenseText.setSummary(BraveRewardsHelper.spannedFromHtmlString(summary));
+        } catch (IOException e) {
+            Log.e(TAG, "Could not load license text: " + e);
+        }
+    }
+}

android/java/res/xml/brave_license_preferences.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2020 The Brave Authors. All rights reserved.
+     This Source Code Form is subject to the terms of the Mozilla Public
+     License, v. 2.0. If a copy of the MPL was not distributed with this file,
+     You can obtain one at http://mozilla.org/MPL/2.0/.
+-->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <org.chromium.chrome.browser.preferences.TextMessagePreference
+        android:key="brave_license_text" />
+</PreferenceScreen>

android/java/res/xml/legal_information_preferences.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2014 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. -->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <org.chromium.chrome.browser.preferences.HyperlinkPreference
+        android:key="open_source_license"
+        android:title="@string/open_source_license_title"
+        app:url="@string/open_source_license_url" />
+    <org.chromium.chrome.browser.preferences.HyperlinkPreference
+        android:key="terms_of_service"
+        android:title="@string/terms_of_service_title"
+        app:url="@string/brave_terms_of_service_url" />
+    <org.chromium.chrome.browser.preferences.HyperlinkPreference
+        android:key="privacy_notice"
+        android:title="@string/privacy_notice_title"
+        app:url="@string/brave_privacy_notice_url" />
+    <Preference
+        android:fragment="org.chromium.chrome.browser.preferences.BraveLicensePreferences"
+        android:key="brave_license"
+        android:title="@string/brave_license_text" />
+</PreferenceScreen>

android/java/strings/android_brave_strings.grd

@@ -794,6 +794,15 @@ until they verify, or until 90 days have passed.
       <message name="IDS_SYNC_DEVICE_FAILURE" desc="The message for the dialog where the user notified about sync setup failure.">
         Sync could not be setup
       </message>
+      <message name="IDS_BRAVE_PRIVACY_NOTICE_URL" desc="URL for the Brave privacy notice" translateable="false">
+        https://brave.com/privacy_android
+      </message>
+      <message name="IDS_BRAVE_TERMS_OF_SERVICE_URL" desc="URL for Brave Terms of Service" translateable="false">
+        https://brave.com/terms_of_use
+      </message>
+      <message name="IDS_BRAVE_LICENSE_TEXT" desc="Title for Brave License">
+        Brave License
+      </message>
     </messages>
   </release>
 </grit>