Remove IntSize::area, and rename IntSize::area_safe() to IntSize::area()

Source/core/rendering/compositing/RenderLayerCompositor.cpp

Index: Source/core/rendering/compositing/RenderLayerCompositor.cpp
diff --git a/Source/core/rendering/compositing/RenderLayerCompositor.cpp b/Source/core/rendering/compositing/RenderLayerCompositor.cpp
index c61637c5a08d69bf4b14cd96ad7133fa64290d35..08635be22ba9dff98defd8d988f74abb1d4a637c 100644
--- a/Source/core/rendering/compositing/RenderLayerCompositor.cpp
+++ b/Source/core/rendering/compositing/RenderLayerCompositor.cpp
@@ -658,8 +658,8 @@ bool RenderLayerCompositor::squashingWouldExceedSparsityTolerance(const RenderLa
     IntRect bounds = candidate->ancestorDependentProperties().clippedAbsoluteBoundingBox;
     IntRect newBoundingRect = squashingState.boundingRect;
     newBoundingRect.unite(bounds);
-    const uint64_t newBoundingRectArea = newBoundingRect.size().area_safe();
-    const uint64_t newSquashedArea = squashingState.totalAreaOfSquashedRects + bounds.size().area_safe();
+    const uint64_t newBoundingRectArea = newBoundingRect.size().area();
+    const uint64_t newSquashedArea = squashingState.totalAreaOfSquashedRects + bounds.size().area();
     return newBoundingRectArea > gSquashingSparsityTolerance * newSquashedArea;
 }