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/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 6106e24..54219b5 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -298,6 +298,12 @@
     });
 }
 
+void RenderProxy::setForceDark(bool enable) {
+    mRenderThread.queue().post([this, enable]() {
+        mContext->setForceDark(enable);
+    });
+}
+
 int RenderProxy::copySurfaceInto(sp<Surface>& surface, int left, int top, int right, int bottom,
                                  SkBitmap* bitmap) {
     auto& thread = RenderThread::getInstance();