Undo remove one allocation of Rect because it is inevitable

Author: ApoloApps

compose/ui/ui/src/desktopMain/kotlin/androidx/compose/ui/scene/WindowComposeSceneLayer.desktop.kt

@@ -29,11 +29,9 @@ import androidx.compose.ui.platform.PlatformWindowContext
 import androidx.compose.ui.scene.skia.SkiaLayerComponent
 import androidx.compose.ui.skiko.OverlayRenderDecorator
 import androidx.compose.ui.unit.Density
-import androidx.compose.ui.unit.IntRect
 import androidx.compose.ui.unit.LayoutDirection
 import androidx.compose.ui.unit.roundToIntRect
 import androidx.compose.ui.unit.toOffset
-import androidx.compose.ui.util.fastRoundToInt
 import androidx.compose.ui.window.density
 import androidx.compose.ui.window.getDialogScrimBlendMode
 import androidx.compose.ui.window.layoutDirectionFor
@@ -115,12 +113,8 @@ internal class WindowComposeSceneLayer(
     override var scrimColor: Color? = null
 
     init {
-        drawBounds =  IntRect(
-            0,
-            0,
-            windowContainer.sizeInPx.width.fastRoundToInt(),
-            windowContainer.sizeInPx.height.fastRoundToInt()
-        )
+        val boundsInPx = windowContainer.sizeInPx.toRect()
+        drawBounds = boundsInPx.roundToIntRect()
         mediator = ComposeSceneMediator(
             container = container,
             isWindowLevel = true,