[Android] Create preference for "Sign out and turn off sync" button in ManageSyncSettings

This cl creates the preference and layout for creating a button in
ManageSyncSettings that will be used to sign the user out using
SignOutDialogFragment

Screenshot: https://crbug.com/1092410#c1

Bug: 1092410
Change-Id: If66793a3c7f2a965c68b441a32d47718bd943c86
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2264338
Commit-Queue: Tanmoy Mollik <triploblastic@chromium.org>
Reviewed-by: Boris Sazonov <bsazonov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#790320}

chrome/android/chrome_java_resources.gni

@@ -990,6 +990,7 @@ chrome_java_resources = [
   "java/res/layout/photo_picker_toolbar.xml",
   "java/res/layout/powered_by_chrome_footer.xml",
   "java/res/layout/preference_text_scale.xml",
+  "java/res/layout/preference_turn_off_sync.xml",
   "java/res/layout/radio_button_group_homepage_preference.xml",
   "java/res/layout/radio_button_group_theme_preference.xml",
   "java/res/layout/recent_tabs_group_item.xml",

chrome/android/chrome_java_sources.gni

@@ -1484,6 +1484,7 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/sync/settings/ManageSyncSettings.java",
   "java/src/org/chromium/chrome/browser/sync/settings/SignInPreference.java",
   "java/src/org/chromium/chrome/browser/sync/settings/SyncAndServicesSettings.java",
+  "java/src/org/chromium/chrome/browser/sync/settings/SyncOffPreference.java",
   "java/src/org/chromium/chrome/browser/sync/settings/SyncSettingsUtils.java",
   "java/src/org/chromium/chrome/browser/sync/ui/PassphraseActivity.java",
   "java/src/org/chromium/chrome/browser/sync/ui/PassphraseCreationDialogFragment.java",

chrome/android/java/res/layout/preference_turn_off_sync.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 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. -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    style="@style/PreferenceLayout"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center">
+
+    <TextView
+        android:id="@+id/turn_off_sync"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/turn_off_sync"
+        android:textAppearance="@style/TextAppearance.TextMediumThick.Blue"
+        android:gravity="center"/>
+
+</LinearLayout>

chrome/android/java/src/org/chromium/chrome/browser/sync/settings/SyncOffPreference.java

+// Copyright 2020 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.sync.settings;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import androidx.preference.DialogPreference;
+
+import org.chromium.chrome.R;
+
+/**
+ * A preference that displays "Sign out and turn off sync" button in {@link ManageSyncSettings}.
+ */
+public class SyncOffPreference extends DialogPreference {
+    public SyncOffPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        setLayoutResource(R.layout.preference_turn_off_sync);
+    }
+}

chrome/browser/ui/android/strings/android_chrome_strings.grd

@@ -1438,6 +1438,9 @@ Your Google account may have other forms of browsing history like searches and a
       <message name="IDS_SYNC_SETTINGS" desc="Title for preference which enables sync'ing of settings. [CHAR-LIMT=32]">
         Settings
       </message>
+      <message name="IDS_TURN_OFF_SYNC" desc="Button that user can press to turn off sync and sign out. [CHAR-LIMT=32]">
+        Sign out and turn off sync
+      </message>
       <message name="IDS_SYNC_PAYMENTS_INTEGRATION" desc="Title for preference which enables import of Google Pay data for Autofill. 'Google Pay' should not be translated as it is the product name.">
         Credit cards and addresses using Google Pay
       </message>

chrome/browser/ui/android/strings/android_chrome_strings_grd/IDS_TURN_OFF_SYNC.png.sha1

+635b9fa291786e0e5ac3ce2d5ac2a0022f42aed1
\ No newline at end of file