Settings: Move DefaultAppInfo CandidateInfo to SettingsLib

Bug: 3600711
Test: Moved DefaultAppInfoTest to SettingsLib
      m RunSettingsRoboTests
Change-Id: If9e2288009277f1940b9769790b78bb0a58b626a

tests/robotests/src/com/android/settings/display/ColorModePreferenceFragmentTest.java

@@ -32,6 +32,7 @@ import com.android.settings.TestConfig;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 import com.android.settings.testutils.shadow.SettingsShadowSystemProperties;
 import com.android.settings.widget.RadioButtonPickerFragment;
+import com.android.settingslib.widget.CandidateInfo;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -72,8 +73,7 @@ public class ColorModePreferenceFragmentTest {
     @Test
     public void getCandidates() {
         when(mFragment.getContext()).thenReturn(RuntimeEnvironment.application);
-        List<? extends RadioButtonPickerFragment.CandidateInfo> candidates =
-                mFragment.getCandidates();
+        List<? extends CandidateInfo> candidates = mFragment.getCandidates();
 
         assertThat(candidates.size()).isEqualTo(3);
         assertThat(candidates.get(0).getKey())