Log brightness configuration.

Bug: 250876737
Test: statsd_testdrive

Also cherry pick of: I566f9006c85c386335cc8d37cb1807fa0b8f9c5b

Change-Id: Ifd7470a9ce29fb86c3fa9c11955775bda5300aa2
(cherry picked from commit 11122b923d)
Merged-in: Ifd7470a9ce29fb86c3fa9c11955775bda5300aa2
Merged-in: I566f9006c85c386335cc8d37cb1807fa0b8f9c5b

services/core/java/com/android/server/display/DisplayManagerService.java

@@ -123,6 +123,7 @@ import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.display.BrightnessSynchronizer;
 import com.android.internal.util.DumpUtils;
+import com.android.internal.util.FrameworkStatsLog;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.AnimationThread;
 import com.android.server.DisplayThread;
@@ -146,6 +147,7 @@ import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.atomic.AtomicLong;
 import java.util.function.Consumer;
 
+
 /**
  * Manages attached displays.
  * <p>
@@ -1867,6 +1869,14 @@ public final class DisplayManagerService extends SystemService {
                 if (displayDevice == null) {
                     return;
                 }
+                if (mLogicalDisplayMapper.getDisplayLocked(displayDevice)
+                        .getDisplayInfoLocked().type == Display.TYPE_INTERNAL) {
+                    FrameworkStatsLog.write(FrameworkStatsLog.BRIGHTNESS_CONFIGURATION_UPDATED,
+                                c.getCurve().first,
+                                c.getCurve().second,
+                                // should not be logged for virtual displays
+                                uniqueId);
+                }
                 mPersistentDataStore.setBrightnessConfigurationForDisplayLocked(c, displayDevice,
                         userSerial, packageName);
             } finally {