Auto merge of #16658 - n0max:remove-index-size-error, r=emilio

Remove IndexSizeError in CanvasRenderingContext2D::drawImage

<!-- Please describe your changes on the following line: -->
The current spec don't expect the IndexSizeError if the rectangle is empty.

---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #10600 (github issue number if applicable).

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- [X] There are tests for these changes

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components/script/dom/canvasrenderingcontext2d.rs

@@ -350,7 +350,7 @@ impl CanvasRenderingContext2D {
                                                                      dh);
 
         if !is_rect_valid(source_rect) || !is_rect_valid(dest_rect) {
-            return Err(Error::IndexSize);
+            return Ok(());
         }
 
         let smoothing_enabled = self.state.borrow().image_smoothing_enabled;
@@ -407,7 +407,7 @@ impl CanvasRenderingContext2D {
                                                                      dh);
 
         if !is_rect_valid(source_rect) || !is_rect_valid(dest_rect) {
-            return Err(Error::IndexSize);
+            return Ok(());
         }
 
         let smoothing_enabled = self.state.borrow().image_smoothing_enabled;

tests/wpt/metadata/2dcontext/conformance-requirements/2d.voidreturn.html.ini

@@ -1,6 +0,0 @@
-[2d.voidreturn.html]
-  type: testharness
-  bug: https://github.com/servo/servo/issues/10600
-  [void methods return undefined]
-    expected: FAIL
-

tests/wpt/metadata/2dcontext/drawing-images-to-the-canvas/2d.drawImage.zerosource.html.ini

@@ -1,5 +0,0 @@
-[2d.drawImage.zerosource.html]
-  type: testharness
-  [drawImage with zero-sized source rectangle draws nothing without exception]
-    expected: FAIL
-