Add auto sign in slider in Clank settings.

chrome/android/javatests/src/org/chromium/chrome/browser/preferences/password/SavedPasswordsPreferencesTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/preferences/password/SavedPasswordsPreferencesTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/preferences/password/SavedPasswordsPreferencesTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/preferences/password/SavedPasswordsPreferencesTest.java
index 9e4cf8b8de0e38432d69f19133d71b464d60505a..95753c02a701460265143e5271b1028fc99b92d6 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/preferences/password/SavedPasswordsPreferencesTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/preferences/password/SavedPasswordsPreferencesTest.java
@@ -6,13 +6,16 @@ package org.chromium.chrome.browser.preferences.password;
 
 import android.test.suitebuilder.annotation.SmallTest;
 
+import org.chromium.base.CommandLine;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.Feature;
+import org.chromium.chrome.browser.preferences.ChromeBaseCheckBoxPreference;
 import org.chromium.chrome.browser.preferences.ChromeSwitchPreference;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.preferences.Preferences;
 import org.chromium.chrome.browser.preferences.PreferencesTest;
 import org.chromium.chrome.shell.ChromeShellTestBase;
+import org.chromium.content.common.ContentSwitches;
 
 /**
  * Tests for the "Save Passwords" settings screen.
@@ -23,6 +26,7 @@ public class SavedPasswordsPreferencesTest extends ChromeShellTestBase {
     protected void setUp() throws Exception {
         super.setUp();
         startChromeBrowserProcessSync(getInstrumentation().getTargetContext());
+        CommandLine.getInstance().appendSwitch(ContentSwitches.ENABLE_CREDENTIAL_MANAGER_API);
     }
 
     /**
@@ -77,4 +81,61 @@ public class SavedPasswordsPreferencesTest extends ChromeShellTestBase {
             }
         });
     }
+
+    /**
+     * Ensure that the "Auto Sign-in" switch in "Save Passwords" settings actually enables and
+     * disables auto sign-in.
+     */
+    @SmallTest
+    @Feature({"Preferences"})
+    public void testAutoSignInCheckbox() throws Exception {
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                PrefServiceBridge.getInstance().setPasswordManagerAutoSigninEnabled(true);
+            }
+        });
+
+        final Preferences preferences = PreferencesTest.startPreferences(
+                getInstrumentation(), ManageSavedPasswordsPreferences.class.getName());
+
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                assertTrue(CommandLine.getInstance().hasSwitch(
+                        ContentSwitches.ENABLE_CREDENTIAL_MANAGER_API));
+                ManageSavedPasswordsPreferences passwordPrefs =
+                        (ManageSavedPasswordsPreferences) preferences.getFragmentForTest();
+                ChromeBaseCheckBoxPreference onOffSwitch =
+                        (ChromeBaseCheckBoxPreference) passwordPrefs.findPreference(
+                                ManageSavedPasswordsPreferences.PREF_AUTOSIGNIN_SWITCH);
+                assertTrue(onOffSwitch.isChecked());
+
+                PreferencesTest.clickPreference(passwordPrefs, onOffSwitch);
+                assertFalse(PrefServiceBridge.getInstance().isPasswordManagerAutoSigninEnabled());
+                PreferencesTest.clickPreference(passwordPrefs, onOffSwitch);
+                assertTrue(PrefServiceBridge.getInstance().isPasswordManagerAutoSigninEnabled());
+
+                preferences.finish();
+
+                PrefServiceBridge.getInstance().setPasswordManagerAutoSigninEnabled(false);
+            }
+        });
+
+        final Preferences preferences2 = PreferencesTest.startPreferences(
+                getInstrumentation(), ManageSavedPasswordsPreferences.class.getName());
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                assertTrue(CommandLine.getInstance().hasSwitch(
+                        ContentSwitches.ENABLE_CREDENTIAL_MANAGER_API));
+                ManageSavedPasswordsPreferences passwordPrefs =
+                        (ManageSavedPasswordsPreferences) preferences2.getFragmentForTest();
+                ChromeBaseCheckBoxPreference onOffSwitch =
+                        (ChromeBaseCheckBoxPreference) passwordPrefs.findPreference(
+                                ManageSavedPasswordsPreferences.PREF_AUTOSIGNIN_SWITCH);
+                assertFalse(onOffSwitch.isChecked());
+            }
+        });
+    }
 }