use an unique variant of CanvasError

- https://github.com/denoland/deno/pull/25517#discussion_r1855116556

ext/canvas/lib.rs

@@ -20,6 +20,9 @@ pub enum CanvasError {
   /// This error will be mapped to DOMExceptionInvalidStateError.
   #[error("Cannot decode image '{0}'")]
   InvalidImage(String),
+  /// This error will be mapped to DOMExceptionInvalidStateError.
+  #[error("The chunk data is not big enough with the specified width: {0} and height: {1}.")]
+  NotBigEnoughChunk(u32, u32),
   #[error(transparent)]
   Lcms(#[from] lcms2::Error),
   #[error(transparent)]

ext/canvas/op_create_image_bitmap.rs

@@ -185,13 +185,11 @@ fn decode_bitmap_data(
         // >   Returns the one-dimensional array containing the data in RGBA order, as integers in the range 0 to 255.
         // https://html.spec.whatwg.org/multipage/canvas.html#pixel-manipulation
         let image = match RgbaImage::from_raw(width, height, buf.into()) {
-        Some(image) => image.into(),
-        None => {
-          return Err(CanvasError::InvalidImage(
-            "The Chunk Data is not big enough with the specified width and height.".to_string()
-          ))
-        }
-      };
+          Some(image) => image.into(),
+          None => {
+            return Err(CanvasError::NotBigEnoughChunk(width, height));
+          }
+        };
 
         (image, width, height, None, None)
       }

runtime/errors.rs

@@ -603,6 +603,7 @@ fn get_canvas_error(e: &CanvasError) -> &'static str {
   match e {
     CanvasError::UnsupportedColorType(_) => "TypeError",
     CanvasError::InvalidImage(_) => "DOMExceptionInvalidStateError",
+    CanvasError::NotBigEnoughChunk(_, _) => "DOMExceptionInvalidStateError",
     CanvasError::Lcms(_) => "TypeError",
     CanvasError::Image(_) => "TypeError",
   }