SurfaceFlinger: allow switching when layers vote to refresh rate

This CL is a refinement of the refresh rate switching algorithm
to allow refresh rate switching even if some of the layers voted
explicitly for a refresh rate.

Test: Run ExoPlayer demo app and scroll the list while playing a video
Bug: 147516364
Change-Id: Id01ff8477804bba9e859545e20b05eeb1ec0d319
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 81051be..46d1a5e 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -185,8 +185,6 @@
     // for the suggested refresh rate.
     HwcConfigIndexType calculateRefreshRateConfigIndexType() REQUIRES(mFeatureStateLock);
 
-    bool layerHistoryHasClientSpecifiedFrameRate() REQUIRES(mFeatureStateLock);
-
     // Stores EventThread associated with a given VSyncSource, and an initial EventThreadConnection.
     struct Connection {
         sp<EventThreadConnection> connection;
@@ -229,7 +227,7 @@
     std::mutex mFeatureStateLock;
 
     struct {
-        ContentDetectionState contentDetection = ContentDetectionState::Off;
+        ContentDetectionState contentDetectionV1 = ContentDetectionState::Off;
         TimerState idleTimer = TimerState::Reset;
         TouchState touch = TouchState::Inactive;
         TimerState displayPowerTimer = TimerState::Expired;