Bug 315305 – Unreviewed, Windows build fix for unused lambda capture in WebLocalFrameLoaderClient::didCacheBackForwardItem

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: New Bugs

[Basuke Suzuki]

After https://commits.webkit.org/313625@main (b776e22550fb), the Windows build fails with:

UnifiedSource-WebProcess-25.cpp:
WebLocalFrameLoaderClient.cpp(1749,91): error: lambda capture 'itemID' is not used [-Werror,-Wunused-lambda-capture]
    webPage->sendWithAsyncReply(Messages::WebPageProxy::DidCacheBackForwardItem(itemID), [itemID, frameItemID](bool success) {
                                                                                          ^~~~~~~

The lambda only references itemID inside RELEASE_LOG_ERROR, which expands to no-op on Windows, so the capture appears unused under -Wunused-lambda-capture.

Fix: add UNUSED_PARAM(itemID) at the start of the lambda body to keep the log information for ports where RELEASE_LOG_ERROR is active and silence the warning where it is not.

[Basuke Suzuki]

*** This bug has been marked as a duplicate of bug 315299 ***