Support accessibility shortcut secondary action (8/n)

Integrate with the multiple shortcut selections and change the behavior as below:
- Get the shortcut type from system provider or shared_prefs if this is first time to use.
- Update the shared_prefs for what user seen.

Bug: 142530063
Bug: 142531156
Test: make RunSettingsRoboTests2
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AccessibilityUtilTest
Change-Id: I58aeb960e2c4aa0bc2432be34c1372c0de89117a

tests/robotests/src/com/android/settings/accessibility/AccessibilityUtilTest.java

@@ -142,6 +142,29 @@ public final class AccessibilityUtilTest {
                 DUMMY_COMPONENT_NAME)).isTrue();
     }
 
+    @Test
+    public void getUserShortcutTypeFromSettings_putOneValue_hasValue() {
+        putStringIntoSettings(SOFTWARE_SHORTCUT_KEY, DUMMY_COMPONENT_NAME.flattenToString());
+
+        final int shortcutType = AccessibilityUtil.getUserShortcutTypesFromSettings(mContext,
+                DUMMY_COMPONENT_NAME);
+        assertThat(
+                (shortcutType & UserShortcutType.SOFTWARE) == UserShortcutType.SOFTWARE).isTrue();
+    }
+
+    @Test
+    public void getUserShortcutTypeFromSettings_putTwoValues_hasValue() {
+        putStringIntoSettings(SOFTWARE_SHORTCUT_KEY, DUMMY_COMPONENT_NAME.flattenToString());
+        putStringIntoSettings(HARDWARE_SHORTCUT_KEY, DUMMY_COMPONENT_NAME.flattenToString());
+
+        final int shortcutType = AccessibilityUtil.getUserShortcutTypesFromSettings(mContext,
+                DUMMY_COMPONENT_NAME);
+        assertThat(
+                (shortcutType & UserShortcutType.SOFTWARE) == UserShortcutType.SOFTWARE).isTrue();
+        assertThat(
+                (shortcutType & UserShortcutType.HARDWARE) == UserShortcutType.HARDWARE).isTrue();
+    }
+
     @Test
     public void optInAllValuesToSettings_optInValue_haveMatchString() {
         int shortcutTypes = UserShortcutType.SOFTWARE | UserShortcutType.HARDWARE;