Rename small dirty detection flag

To align the same feature name declared in display and correct the
infra error for previous flag that used wrong enable flag.

Bug: 283055450
Test: presubmit
Change-Id: I5f495d3fb2614ecd22978d820abe19c88e2cb90b
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index b13c0e8..e6d6866 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -4031,7 +4031,7 @@
 
     if (sysprop::use_content_detection_for_refresh_rate(false)) {
         features |= Feature::kContentDetection;
-        if (flags::vrr_small_dirty_detection()) {
+        if (flags::enable_small_area_detection()) {
             features |= Feature::kSmallDirtyContentDetection;
         }
     }
diff --git a/services/surfaceflinger/surfaceflinger_flags.aconfig b/services/surfaceflinger/surfaceflinger_flags.aconfig
index 5a277bd..19d194f 100644
--- a/services/surfaceflinger/surfaceflinger_flags.aconfig
+++ b/services/surfaceflinger/surfaceflinger_flags.aconfig
@@ -32,14 +32,6 @@
 }
 
 flag {
-  name: "vrr_small_dirty_detection"
-  namespace: "core_graphics"
-  description: "Controls small dirty detection for VRR"
-  bug: "283055450"
-  is_fixed_read_only: true
-}
-
-flag {
   name: "dont_skip_on_early"
   namespace: "core_graphics"
   description: "This flag is guarding the behaviour where SurfaceFlinger is trying to opportunistically present a frame when the configuration change from late to early"
@@ -53,3 +45,11 @@
   bug: "259132483"
   is_fixed_read_only: true
 }
+
+flag {
+  name: "enable_small_area_detection"
+  namespace: "core_graphics"
+  description: "Feature flag for SmallAreaDetection"
+  bug: "283055450"
+  is_fixed_read_only: true
+}
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