Adapt to new signature of SITH::AssociateBlockingPage()

It does no longer expect a WebContents and a navigation ID.

Chromium change:

https://source.chromium.org/chromium/chromium/src/+/f88ed985d8b8b8e21806a3897a207a643d049f47

commit f88ed985d8b8b8e21806a3897a207a643d049f47
Author: Claudio DeSouza <cdesouza@igalia.com>
Date:   Wed Aug 25 17:59:59 2021 +0000

    [MPArch] Update SecurityInterstitialTabHelper for primary page only

    Interstitial pages are not supposed to be shown during pre-rendering,
    and changes have been done in different parts of the codebase to reflect
    that. This CL introduces changes to the tab helper, to make sure we do
    not a hold a security insterstitial page for a prerendering navigation,
    as well as avoiding processing observer events for similar cases.

    Bug: 1225210

components/brave_shields/browser/domain_block_navigation_throttle.cc

@@ -186,7 +186,7 @@ void DomainBlockNavigationThrottle::ShowInterstitial() {
 
   // Replace the tab contents with our interstitial page.
   security_interstitials::SecurityInterstitialTabHelper::AssociateBlockingPage(
-      web_contents, handle->GetNavigationId(), std::move(blocked_page));
+      handle, std::move(blocked_page));
 
   // Navigation was deferred rather than canceled outright because the
   // call to the ad blocking service happens on a task runner, but now we

components/decentralized_dns/decentralized_dns_navigation_throttle.cc

@@ -83,7 +83,7 @@ void DecentralizedDnsNavigationThrottle::ShowInterstitial() {
   std::string page_content = page->GetHTMLContents();
 
   security_interstitials::SecurityInterstitialTabHelper::AssociateBlockingPage(
-      web_contents, handle->GetNavigationId(), std::move(page));
+      handle, std::move(page));
 
   CancelDeferredNavigation(content::NavigationThrottle::ThrottleCheckResult(
       content::NavigationThrottle::CANCEL, net::ERR_BLOCKED_BY_CLIENT,

components/ipfs/ipfs_navigation_throttle.cc

@@ -193,7 +193,7 @@ IpfsNavigationThrottle::ShowIPFSOnboardingInterstitial() {
   std::string page_content = page->GetHTMLContents();
 
   security_interstitials::SecurityInterstitialTabHelper::AssociateBlockingPage(
-      web_contents, handle->GetNavigationId(), std::move(page));
+      handle, std::move(page));
   return content::NavigationThrottle::ThrottleCheckResult(
       content::NavigationThrottle::CANCEL, net::ERR_BLOCKED_BY_CLIENT,
       page_content);
@@ -213,7 +213,7 @@ void IpfsNavigationThrottle::ShowInterstitial() {
   std::string page_content = page->GetHTMLContents();
 
   security_interstitials::SecurityInterstitialTabHelper::AssociateBlockingPage(
-      web_contents, handle->GetNavigationId(), std::move(page));
+      handle, std::move(page));
 
   CancelDeferredNavigation(content::NavigationThrottle::ThrottleCheckResult(
       content::NavigationThrottle::CANCEL, net::ERR_BLOCKED_BY_CLIENT,