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

cc/paint/paint_op_buffer_unittest.cc

Index: cc/paint/paint_op_buffer_unittest.cc
diff --git a/cc/paint/paint_op_buffer_unittest.cc b/cc/paint/paint_op_buffer_unittest.cc
index 2afcdeda27c5fd73b831f45ddb9acb0775ea96c4..dbd7d28de4e755b09d6fcfabf0ec069ed18038af 100644
--- a/cc/paint/paint_op_buffer_unittest.cc
+++ b/cc/paint/paint_op_buffer_unittest.cc
@@ -63,8 +63,8 @@ TEST(PaintOpBufferTest, SimpleAppend) {
 
   ASSERT_EQ(iter->GetType(), PaintOpType::DrawColor);
   DrawColorOp* op = static_cast<DrawColorOp*>(*iter);
-  EXPECT_EQ(op->color, draw_color);
-  EXPECT_EQ(op->mode, blend);
+  EXPECT_EQ(static_cast<SkColor>(op->color), draw_color);
+  EXPECT_EQ(static_cast<SkBlendMode>(op->mode), blend);
   ++iter;
 
   ASSERT_EQ(iter->GetType(), PaintOpType::Restore);