[Webkit-unassigned] [Bug 255937] [WinCairo]REGRESSION(263118 at main): Small viewport does end up in broken screenshots via Page.snapshotRect

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255937

--- Comment #2 from Fujii Hironori <Hironori.Fujii at sony.com> ---
Windows WebKit Playwright is still using non-GPU process mode.
We have to modify MiniBrowser to use non-GPU process mode in MiniBrowser.

diff --git a/Tools/MiniBrowser/win/WebKitBrowserWindow.cpp b/Tools/MiniBrowser/win/WebKitBrowserWindow.cpp
index fac65d82f8ab..ff977c47f1c7 100644
--- a/Tools/MiniBrowser/win/WebKitBrowserWindow.cpp
+++ b/Tools/MiniBrowser/win/WebKitBrowserWindow.cpp
@@ -145,6 +145,10 @@ Ref<BrowserWindow> WebKitBrowserWindow::create(BrowserWindowClient& client, HWND
     WKPreferencesSetMediaCapabilitiesEnabled(preferences.get(), false);
     WKPreferencesSetDeveloperExtrasEnabled(preferences.get(), true);

+#if 1 // Don't land this
+    WKPreferencesSetBoolValueForKeyForTesting(preferences.get(), false, createWKString("UseGPUProcessForWebGLEnabled").get());
+#endif
+
     auto pageGroup = adoptWK(WKPageGroupCreateWithIdentifier(createWKString("WinMiniBrowser").get()));
     WKPageGroupSetPreferences(pageGroup.get(), preferences.get());


However, I can't see any problems with small window size.

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