Teach SiteInstance::GetSiteForURL() about blob and filesystem URLs.

chrome/browser/search/search.cc

Index: chrome/browser/search/search.cc
diff --git a/chrome/browser/search/search.cc b/chrome/browser/search/search.cc
index 645fecb9a52e535b344cc9554331c891695ddc61..57c9cb512115914caeb724a60f11357f93662bca 100644
--- a/chrome/browser/search/search.cc
+++ b/chrome/browser/search/search.cc
@@ -490,11 +490,13 @@ GURL GetEffectiveURLForInstant(const GURL& url, Profile* profile) {
 
   GURL effective_url(url);
 
-  // Replace the scheme with "chrome-search:".
+  // Replace the scheme with "chrome-search:", and clear the port, since
+  // chrome-search is a scheme without port.
   url::Replacements<char> replacements;
   std::string search_scheme(chrome::kChromeSearchScheme);
   replacements.SetScheme(search_scheme.data(),
                          url::Component(0, search_scheme.length()));
+  replacements.ClearPort();
 
   // If this is the URL for a server-provided NTP, replace the host with
   // "remote-ntp".