Accomodate brightness space change for client target

Previous the hal reported a white point in nits. Since nits are being
removed from the composer interface, SurfaceFlinger converts a dimming
ratio reported by composer into a white point instead.

Bug: 217961164
Test: builds, boots
Change-Id: I9ceec3af80f503df0debe434bb454ec42694811b
Merged-In: I9ceec3af80f503df0debe434bb454ec42694811b
diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index cfbdbd1..2e6bebc 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
@@ -1054,11 +1054,11 @@
 
 Error AidlComposer::getClientTargetProperty(
         Display display, IComposerClient::ClientTargetProperty* outClientTargetProperty,
-        float* whitePointNits) {
+        float* outBrightness) {
     const auto property = mReader.takeClientTargetProperty(translate<int64_t>(display));
     *outClientTargetProperty =
             translate<IComposerClient::ClientTargetProperty>(property.clientTargetProperty);
-    *whitePointNits = property.whitePointNits;
+    *outBrightness = property.brightness;
     return Error::NONE;
 }