Unreviewed, 290246@main introduced a lot of Safer CPP failures on EWS

https://bugs.webkit.org/show_bug.cgi?id=287543

* Source/WebKit/SaferCPPExpectations/UncheckedCallArgsCheckerExpectations:
* Source/WebKit/UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::requestAttachmentIcon):
(WebKit::WebPageProxy::sendToWebPage):

Canonical link: https://commits.webkit.org/290257@main

Author: cdumez

Source/WebKit/SaferCPPExpectations/UncheckedCallArgsCheckerExpectations

@@ -20,6 +20,7 @@ UIProcess/ProvisionalFrameProxy.cpp
 UIProcess/SuspendedPageProxy.cpp
 UIProcess/UserMediaPermissionRequestManagerProxy.cpp
 UIProcess/WebContextMenuProxy.cpp
+UIProcess/WebPageProxy.cpp
 UIProcess/WebEditCommandProxy.cpp
 UIProcess/WebURLSchemeTask.cpp
 UIProcess/mac/WKImmediateActionController.mm

Source/WebKit/UIProcess/WebPageProxy.cpp

@@ -14057,7 +14057,7 @@ void WebPageProxy::requestAttachmentIcon(IPC::Connection& connection, const Stri
 {
     MESSAGE_CHECK_BASE(protectedPreferences()->attachmentElementEnabled(), connection);
 
-    auto updateAttachmentIcon = [&] {
+    auto updateAttachmentIcon = [&, protectedThis = Ref { *this }] {
         FloatSize size = requestedSize;
         std::optional<ShareableBitmap::Handle> handle;
 
@@ -15573,7 +15573,7 @@ template<typename F>
 decltype(auto) WebPageProxy::sendToWebPage(std::optional<FrameIdentifier> frameID, F&& sendFunction)
 {
     if (RefPtr frame = WebFrameProxy::webFrame(frameID)) {
-        if (auto* remotePage = protectedBrowsingContextGroup()->remotePageInProcess(*this, frame->protectedProcess()))
+        if (RefPtr remotePage = protectedBrowsingContextGroup()->remotePageInProcess(*this, frame->protectedProcess()))
             return sendFunction(*remotePage);
     }
     return sendFunction(*this);