[css-paint-api] Small code fixes to examples.

Author: bfgeek

css-paint-api/arc/arc.js

@@ -36,7 +36,7 @@ registerPaint('arc', class {
   }
 
   convertAngle(angle) {
-    const value = angle.value || convertFloat(angle.cssText);
+    const value = angle.value || parseFloat(angle.cssText);
     const unit = angle.unit || angle.cssText.match(this.regex)[0];
 
     switch (unit) {

css-paint-api/circle/index.html

@@ -25,6 +25,6 @@
       initialValue: 'black',
       inherit: false
     });
-    CSS.paintWorklet.import('circle.js');
+    (CSS.paintWorklet || paintWorklet).import('circle.js');
 </script>