Force a battery tracker update on dumping proto request

There is an internal throttling but it shouldn't be applicable to
the dump request.

Bug: 203105544
Test: dumpsys activity app-restrictions --proto
Change-Id: Iff718224f08df1b63f7f90c210faf3e01bbee1e3

services/core/java/com/android/server/am/AppBatteryTracker.java

@@ -839,6 +839,8 @@ final class AppBatteryTracker extends BaseAppStateTracker<AppBatteryPolicy>
 
     @Override
     void dumpAsProto(ProtoOutputStream proto, int uid) {
+        // Force an update.
+        updateBatteryUsageStatsIfNecessary(mInjector.currentTimeMillis(), true);
         synchronized (mLock) {
             final SparseArray<ImmutableBatteryUsage> uidConsumers = mUidBatteryUsageInWindow;
             if (uid != android.os.Process.INVALID_UID) {