Copy BatterySettingsContentProvider from SettingsIntelligence to Settings and rename it to BatteryUsageContentProvider.

Bug: 253395332
Test: make RunSettingsRoboTests + manually
Change-Id: Ib6c2240cd065f6e29393e13b7231bba7afd2d850

tests/robotests/src/com/android/settings/testutils/FakeClock.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.testutils;
+
+import java.time.Clock;
+import java.time.Duration;
+import java.time.Instant;
+import java.time.ZoneId;
+
+/** A fake {@link Clock} class for testing. */
+public final class FakeClock extends Clock {
+    private long mCurrentTimeMillis;
+
+    public FakeClock() {}
+
+    /** Sets the time in millis for {@link Clock#millis()} method. */
+    public void setCurrentTime(Duration duration) {
+        mCurrentTimeMillis = duration.toMillis();
+    }
+
+    @Override
+    public ZoneId getZone() {
+        throw new UnsupportedOperationException("unsupported!");
+    }
+
+    @Override
+    public Clock withZone(ZoneId zone) {
+        throw new UnsupportedOperationException("unsupported!");
+    }
+
+    @Override
+    public Instant instant() {
+        throw new UnsupportedOperationException("unsupported!");
+    }
+
+    @Override
+    public long millis() {
+        return mCurrentTimeMillis;
+    }
+}