SF: default display is active display

For devices with multiple internal displays, choose the internal
display the is powered on (if any) to be the default display that
would be used mainly for vsync tracking.

Bug: 187539899
Test: SF unit tests
Change-Id: Icc305cdeec1c8a04729f00ff795dfbb806d8f72c
Merged-In: Icc305cdeec1c8a04729f00ff795dfbb806d8f72c
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 6d6e3c2..384e4e9 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -893,7 +893,7 @@
     }
 }
 
-void Scheduler::onPrimaryDisplayAreaChanged(uint32_t displayArea) {
+void Scheduler::onActiveDisplayAreaChanged(uint32_t displayArea) {
     mLayerHistory->setDisplayArea(displayArea);
 }