Add Indexing and Search for ChooseLockGenericFragment

- clean some imports
- add key and title to security_settings_picker.xml
- add ChooseLockGenericFragment in SearchIndexableResources

Change-Id: I867a1e11905cc4059d6eccabeab04d55cc3d799e

res/xml/security_settings_picker.xml

@@ -14,7 +14,9 @@
      limitations under the License.
 -->
 
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+        android:title="@string/lock_settings_picker_title"
+        android:key="lock_settings_picker">
 
     <PreferenceScreen
             android:key="unlock_set_off"

src/com/android/settings/ChooseLockGeneric.java

@@ -23,8 +23,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.pm.UserInfo;
 import android.os.Bundle;
-import android.os.Process;
-import android.os.UserHandle;
 import android.os.UserManager;
 import android.preference.Preference;
 import android.preference.PreferenceScreen;

src/com/android/settings/search/SearchIndexableResources.java

@@ -18,6 +18,7 @@ package com.android.settings.search;
 
 import android.provider.SearchIndexableResource;
 
+import com.android.settings.ChooseLockGeneric;
 import com.android.settings.DataUsageSummary;
 import com.android.settings.DateTimeSettings;
 import com.android.settings.DevelopmentSettings;
@@ -187,6 +188,12 @@ public final class SearchIndexableResources {
                         SecuritySettings.class.getName(),
                         R.drawable.ic_settings_security));
 
+        sResMap.put(ChooseLockGeneric.ChooseLockGenericFragment.class.getName(),
+                new SearchIndexableResource(RANK_SECURITY,
+                        R.xml.security_settings_picker,
+                        ChooseLockGeneric.ChooseLockGenericFragment.class.getName(),
+                        R.drawable.ic_settings_security));
+
         sResMap.put(InputMethodAndLanguageSettings.class.getName(),
                 new SearchIndexableResource(RANK_IME,
                         NO_DATA_RES_ID,