Wire-up default force-dark based off of isLightTheme

Bug: 102591313
Test: Compared settings in light & dark UI modes with
force_dark set to true. Observed that force_dark fixes
were not present when UI mode was set to dark, indicating
force_dark was appropriately globally-disabled

Change-Id: I5882829bb5871829fc8fc9911682f52a6ba5f445
diff --git a/libs/hwui/Properties.cpp b/libs/hwui/Properties.cpp
index 17bec19..a699e2f 100644
--- a/libs/hwui/Properties.cpp
+++ b/libs/hwui/Properties.cpp
@@ -61,6 +61,7 @@
 bool Properties::disableVsync = false;
 bool Properties::skpCaptureEnabled = false;
 bool Properties::forceDarkMode = false;
+bool Properties::enableForceDarkSupport = false;
 bool Properties::enableRTAnimations = true;
 
 bool Properties::runningInEmulator = false;
@@ -149,6 +150,9 @@
 
     forceDarkMode = property_get_bool(PROPERTY_FORCE_DARK, false);
 
+    // TODO: make this on by default
+    enableForceDarkSupport = property_get_bool(PROPERTY_ENABLE_FORCE_DARK, false);
+
     return (prevDebugLayersUpdates != debugLayersUpdates) || (prevDebugOverdraw != debugOverdraw) ||
            (prevDebugStencilClip != debugStencilClip);
 }