SurfaceFlinger: rename use_smart_90_for_video flag

Rename use_smart_90_for_video -> use_content_detection_for_refresh_rate
to better describe what it controls.

Test: Play video and observe the refresh rate
Change-Id: I5ae03073bd670d0b3bc7f2861cbf3ec0d28efbe7
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index bc4f805..19f3f98 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -108,7 +108,8 @@
         mUseContentDetectionV2(useContentDetectionV2) {
     using namespace sysprop;
 
-    if (property_get_bool("debug.sf.use_smart_90_for_video", 0) || use_smart_90_for_video(false)) {
+    if (property_get_bool("debug.sf.use_content_detection_for_refresh_rate", 0) ||
+        use_content_detection_for_refresh_rate(false)) {
         if (mUseContentDetectionV2) {
             mLayerHistory = std::make_unique<scheduler::impl::LayerHistoryV2>();
         } else {
diff --git a/services/surfaceflinger/SurfaceFlingerProperties.cpp b/services/surfaceflinger/SurfaceFlingerProperties.cpp
index b4716eb..688606f 100644
--- a/services/surfaceflinger/SurfaceFlingerProperties.cpp
+++ b/services/surfaceflinger/SurfaceFlingerProperties.cpp
@@ -18,6 +18,7 @@
 #include <android/hardware/configstore/1.1/ISurfaceFlingerConfigs.h>
 #include <android/hardware/configstore/1.1/types.h>
 #include <configstore/Utils.h>
+#include <utils/Log.h>
 
 #include <cstdlib>
 #include <tuple>
@@ -258,8 +259,17 @@
     return defaultValue;
 }
 
-bool use_smart_90_for_video(bool defaultValue) {
-    auto temp = SurfaceFlingerProperties::use_smart_90_for_video();
+bool use_content_detection_for_refresh_rate(bool defaultValue) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+    auto smart_90_deprecated = SurfaceFlingerProperties::use_smart_90_for_video();
+#pragma clang diagnostic pop
+    if (smart_90_deprecated.has_value()) {
+        ALOGW("Using deprecated use_smart_90_for_video sysprop. Value: %d", *smart_90_deprecated);
+        return *smart_90_deprecated;
+    }
+
+    auto temp = SurfaceFlingerProperties::use_content_detection_for_refresh_rate();
     if (temp.has_value()) {
         return *temp;
     }
diff --git a/services/surfaceflinger/SurfaceFlingerProperties.h b/services/surfaceflinger/SurfaceFlingerProperties.h
index e394cca..440df49 100644
--- a/services/surfaceflinger/SurfaceFlingerProperties.h
+++ b/services/surfaceflinger/SurfaceFlingerProperties.h
@@ -81,7 +81,7 @@
 
 int32_t set_display_power_timer_ms(int32_t defaultValue);
 
-bool use_smart_90_for_video(bool defaultValue);
+bool use_content_detection_for_refresh_rate(bool defaultValue);
 
 bool enable_protected_contents(bool defaultValue);
 
diff --git a/services/surfaceflinger/sysprop/SurfaceFlingerProperties.sysprop b/services/surfaceflinger/sysprop/SurfaceFlingerProperties.sysprop
index ed2b220..c839985 100644
--- a/services/surfaceflinger/sysprop/SurfaceFlingerProperties.sysprop
+++ b/services/surfaceflinger/sysprop/SurfaceFlingerProperties.sysprop
@@ -344,14 +344,26 @@
     prop_name: "ro.surface_flinger.set_display_power_timer_ms"
 }
 
+# useContentDetectionForRefreshRate indicates whether Scheduler should detect content FPS, and try
+# to adjust the screen refresh rate based on that.
+prop {
+    api_name: "use_content_detection_for_refresh_rate"
+    type: Boolean
+    scope: Public
+    access: Readonly
+    prop_name: "ro.surface_flinger.use_content_detection_for_refresh_rate"
+}
+
 # useSmart90ForVideo indicates whether Scheduler should detect content FPS, and try to adjust the
 # screen refresh rate based on that.
+# Replaced by useContentDetectionForRefreshRate
 prop {
     api_name: "use_smart_90_for_video"
     type: Boolean
     scope: Public
     access: Readonly
     prop_name: "ro.surface_flinger.use_smart_90_for_video"
+    deprecated: true
 }
 
 prop {
diff --git a/services/surfaceflinger/sysprop/api/SurfaceFlingerProperties-current.txt b/services/surfaceflinger/sysprop/api/SurfaceFlingerProperties-current.txt
index d24ad18..edbdd90 100644
--- a/services/surfaceflinger/sysprop/api/SurfaceFlingerProperties-current.txt
+++ b/services/surfaceflinger/sysprop/api/SurfaceFlingerProperties-current.txt
@@ -112,12 +112,17 @@
     prop_name: "ro.surface_flinger.use_color_management"
   }
   prop {
+    api_name: "use_content_detection_for_refresh_rate"
+    prop_name: "ro.surface_flinger.use_content_detection_for_refresh_rate"
+  }
+  prop {
     api_name: "use_context_priority"
     prop_name: "ro.surface_flinger.use_context_priority"
   }
   prop {
     api_name: "use_smart_90_for_video"
     prop_name: "ro.surface_flinger.use_smart_90_for_video"
+    deprecated: true
   }
   prop {
     api_name: "use_vr_flinger"