test(bidi): fix large screenshot test

tests/bidi/expectations/moz-firefox-nightly-page.txt

@@ -140,7 +140,6 @@ page/page-route.spec.ts › should not throw if request was cancelled by the pag
 page/page-screenshot.spec.ts › page screenshot › should allow transparency [fail]
 page/page-screenshot.spec.ts › page screenshot animations › should not capture css animations in shadow DOM [flaky]
 page/page-screenshot.spec.ts › page screenshot animations › should not capture pseudo element css animation [fail]
-page/page-screenshot.spec.ts › should throw if screenshot size is too large [fail]
 page/page-set-input-files.spec.ts › should upload a folder [fail]
 page/page-wait-for-load-state.spec.ts › should wait for load state of empty url popup [timeout]
 page/wheel.spec.ts › should dispatch wheel events after popup was opened @smoke [timeout]

tests/page/page-screenshot.spec.ts

@@ -884,18 +884,21 @@ it.describe('page screenshot animations', () => {
   });
 });
 
-it('should throw if screenshot size is too large', async ({ page, browserName, isMac }) => {
+it('should throw if screenshot size is too large', async ({ page, browserName, isMac, isBidi }) => {
+  const maxSize = browserName === 'firefox' && isBidi ? 65535 : 32767;
   it.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/16727' });
   {
-    await page.setContent(`<style>body {margin: 0; padding: 0;}</style><div style='min-height: 32767px; background: red;'></div>`);
+    await page.setContent(`<style>body {margin: 0; padding: 0;}</style><div style='min-height: ${maxSize}px; background: red;'></div>`);
     const result = await page.screenshot({ fullPage: true });
     expect(result).toBeTruthy();
   }
   {
-    await page.setContent(`<style>body {margin: 0; padding: 0;}</style><div style='min-height: 32768px; background: red;'></div>`);
+    await page.setContent(`<style>body {margin: 0; padding: 0;}</style><div style='min-height: ${maxSize + 1}px; background: red;'></div>`);
     const exception = await page.screenshot({ fullPage: true }).catch(e => e);
-    if (browserName === 'firefox' || (browserName === 'webkit' && !isMac))
+    if ((browserName === 'firefox' && !isBidi) || (browserName === 'webkit' && !isMac))
       expect(exception.message).toContain('Cannot take screenshot larger than 32767');
+    else if (browserName === 'firefox' && isBidi)
+      expect(exception.message).toContain('Unable to capture screenshot');
   }
 });