cc: Audit and static_assert the types in PaintOpBuffer can be moved.

cc/paint/paint_op_buffer.cc

Index: cc/paint/paint_op_buffer.cc
diff --git a/cc/paint/paint_op_buffer.cc b/cc/paint/paint_op_buffer.cc
index d6556ab50df49e5de58a7f60b50fb2cd6141b668..23c1726ea875a8c2aa8ec32502a3610bf686d0cd 100644
--- a/cc/paint/paint_op_buffer.cc
+++ b/cc/paint/paint_op_buffer.cc
@@ -194,7 +194,7 @@ void AnnotateOp::Raster(const PaintOp* base_op,
                         SkCanvas* canvas,
                         const SkMatrix& original_ctm) {
   auto* op = static_cast<const AnnotateOp*>(base_op);
-  switch (op->annotation_type) {
+  switch (static_cast<PaintCanvas::AnnotationType>(op->annotation_type)) {
     case PaintCanvas::AnnotationType::URL:
       SkAnnotateRectWithURL(canvas, op->rect, op->data.get());
       break;
@@ -213,21 +213,21 @@ void ClipPathOp::Raster(const PaintOp* base_op,
                         SkCanvas* canvas,
                         const SkMatrix& original_ctm) {
   auto* op = static_cast<const ClipPathOp*>(base_op);
-  canvas->clipPath(op->path, op->op, op->antialias);
+  canvas->clipPath(op->path, static_cast<SkClipOp>(op->op), op->antialias);
 }
 
 void ClipRectOp::Raster(const PaintOp* base_op,
                         SkCanvas* canvas,
                         const SkMatrix& original_ctm) {
   auto* op = static_cast<const ClipRectOp*>(base_op);
-  canvas->clipRect(op->rect, op->op, op->antialias);
+  canvas->clipRect(op->rect, static_cast<SkClipOp>(op->op), op->antialias);
 }
 
 void ClipRRectOp::Raster(const PaintOp* base_op,
                          SkCanvas* canvas,
                          const SkMatrix& original_ctm) {
   auto* op = static_cast<const ClipRRectOp*>(base_op);
-  canvas->clipRRect(op->rrect, op->op, op->antialias);
+  canvas->clipRRect(op->rrect, static_cast<SkClipOp>(op->op), op->antialias);
 }
 
 void ConcatOp::Raster(const PaintOp* base_op,
@@ -258,7 +258,8 @@ void DrawColorOp::Raster(const PaintOp* base_op,
                          SkCanvas* canvas,
                          const SkMatrix& original_ctm) {
   auto* op = static_cast<const DrawColorOp*>(base_op);
-  canvas->drawColor(op->color, op->mode);
+  canvas->drawColor(static_cast<SkColor>(op->color),
+                    static_cast<SkBlendMode>(op->mode));
 }
 
 void DrawDisplayItemListOp::Raster(const PaintOp* base_op,
@@ -496,7 +497,9 @@ int DrawRecordOp::CountSlowPaths() const {
 AnnotateOp::AnnotateOp(PaintCanvas::AnnotationType annotation_type,
                        const SkRect& rect,
                        sk_sp<SkData> data)
-    : annotation_type(annotation_type), rect(rect), data(std::move(data)) {}
+    : annotation_type(static_cast<uint8_t>(annotation_type)),
+      rect(rect),
+      data(std::move(data)) {}
 
 AnnotateOp::~AnnotateOp() = default;