[Soup] USE(SOUP2) build fix after 250730@main

https://bugs.webkit.org/show_bug.cgi?id=240943

Patch by Žan Doberšek <zdobersek@igalia.com> on 2022-05-25
Unreviewed build fix for USE(SOUP2), switching to string literals in a couple of
places where URL::protocolIs() is expecting them.

* Source/WebKit/NetworkProcess/soup/NetworkDataTaskSoup.cpp:
(WebKit::NetworkDataTaskSoup::authenticateCallback):
(WebKit::NetworkDataTaskSoup::didStartRequest):

Canonical link: https://commits.webkit.org/251001@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@294871 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebKit/NetworkProcess/soup/NetworkDataTaskSoup.cpp

@@ -657,7 +657,7 @@ void NetworkDataTaskSoup::authenticateCallback(SoupSession* session, SoupMessage
     // it's proxy authentication and the request URL is HTTPS, because in that case libsoup uses a
     // tunnel internally and the SoupMessage used for the authentication is the tunneling one.
     // See https://bugs.webkit.org/show_bug.cgi?id=175378.
-    if (soupMessage != task->m_soupMessage.get() && (soupMessage->status_code != SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED || !task->m_currentRequest.url().protocolIs("https")))
+    if (soupMessage != task->m_soupMessage.get() && (soupMessage->status_code != SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED || !task->m_currentRequest.url().protocolIs("https"_s)))
         return;
 
     if (task->state() == State::Canceling || task->state() == State::Completed || !task->m_client) {
@@ -1636,7 +1636,7 @@ void NetworkDataTaskSoup::didStartRequest()
 {
 #if USE(SOUP2)
     m_networkLoadMetrics.requestStart = MonotonicTime::now();
-    if (!m_networkLoadMetrics.secureConnectionStart && m_currentRequest.url().protocolIs("https"))
+    if (!m_networkLoadMetrics.secureConnectionStart && m_currentRequest.url().protocolIs("https"_s))
         m_networkLoadMetrics.secureConnectionStart = WebCore::reusedTLSConnectionSentinel;
 #else
     auto* metrics = soup_message_get_metrics(m_soupMessage.get());