Fix failing integration test on Windws with Chrome

It fixes mozilla#18775.

test/integration/highlight_editor_spec.mjs

@@ -1777,14 +1777,18 @@ describe("Highlight Editor", () => {
 
           const rect = await getSpanRectFromText(page, 1, "Abstract");
           const editorSelector = getEditorSelector(0);
-          const x = rect.x + rect.width / 2;
-          let y = rect.y + rect.height / 2;
+          const x = Math.round(rect.x + rect.width / 2);
+          let y = Math.round(rect.y + rect.height / 2);
           await page.mouse.click(x, y, { count: 2, delay: 100 });
           await page.waitForSelector(editorSelector);
           await waitForSerialized(page, 1);
           await page.keyboard.press("Escape");
           await page.waitForSelector(`${editorSelector}:not(.selectedEditor)`);
 
+          const clickHandle = await waitForPointerUp(page);
+          y = Math.round(rect.y - rect.height);
+          await page.mouse.move(x, y);
+
           const counterHandle = await page.evaluateHandle(sel => {
             const el = document.querySelector(sel);
             const counter = { count: 0 };
@@ -1798,19 +1802,22 @@ describe("Highlight Editor", () => {
             return counter;
           }, editorSelector);
 
-          const clickHandle = await waitForPointerUp(page);
-          y = rect.y - rect.height;
-          await page.mouse.move(x, y);
           await page.mouse.down();
+          await page.waitForSelector(
+            `.page[data-page-number = "1"] .annotationEditorLayer.drawing`
+          );
           for (
             const endY = rect.y + 2 * rect.height;
             y <= endY;
             y += rect.height / 10
           ) {
-            await page.mouse.move(x, y);
+            await page.mouse.move(x, Math.round(y));
           }
           await page.mouse.up();
           await awaitPromise(clickHandle);
+          await page.waitForSelector(
+            `.page[data-page-number = "1"] .annotationEditorLayer:not(.drawing)`
+          );
 
           const { count } = await counterHandle.jsonValue();
           expect(count).withContext(`In ${browserName}`).toEqual(0);