DO NOT MERGE Disable changing lock when device is not provisioned.

When the device is not yet provisioned and settings is launched:
- disable the entry point for changing device lock
- remove the search panel from settings home page

Bug: 110034419
Test: make RunSettingsRoboTests
Change-Id: Ieb7eb0e8699229ec0824ccc19d7b958ac44965a2

src/com/android/settings/ChooseLockGeneric.java

@@ -133,6 +133,11 @@ public class ChooseLockGeneric extends SettingsActivity {
         @Override
         public void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);
+            final Activity activity = getActivity();
+            if (!Utils.isDeviceProvisioned(activity) && !canRunBeforeDeviceProvisioned()) {
+                activity.finish();
+                return;
+            }
 
             mFingerprintManager =
                 (FingerprintManager) getActivity().getSystemService(Context.FINGERPRINT_SERVICE);
@@ -216,6 +221,10 @@ public class ChooseLockGeneric extends SettingsActivity {
             addHeaderView();
         }
 
+        protected boolean canRunBeforeDeviceProvisioned() {
+            return false;
+        }
+
         protected void addHeaderView() {
             if (mForFingerprint) {
                 setHeaderView(R.layout.choose_lock_generic_fingerprint_header);

src/com/android/settings/SettingsActivity.java

@@ -619,7 +619,7 @@ public class SettingsActivity extends SettingsDrawerActivity
                 // No UP affordance if we are displaying the main Dashboard
                 mDisplayHomeAsUpEnabled = false;
                 // Show Search affordance
-                mDisplaySearch = true;
+                mDisplaySearch = Utils.isDeviceProvisioned(this);
                 mInitialTitleResId = R.string.dashboard_title;
                 switchToFragment(DashboardSummary.class.getName(), null, false, false,
                         mInitialTitleResId, mInitialTitle, false);

src/com/android/settings/SetupChooseLockGeneric.java

@@ -147,6 +147,11 @@ public class SetupChooseLockGeneric extends ChooseLockGeneric {
             return layout.onCreateRecyclerView(inflater, parent, savedInstanceState);
         }
 
+        @Override
+        protected boolean canRunBeforeDeviceProvisioned() {
+            return true;
+        }
+
         /***
          * Disables preferences that are less secure than required quality and shows only secure
          * screen lock options here.