Fix process transfers for blob urls of sites requiring dedicated processes.

content/shell/browser/shell_content_browser_client.cc

Index: content/shell/browser/shell_content_browser_client.cc
diff --git a/content/shell/browser/shell_content_browser_client.cc b/content/shell/browser/shell_content_browser_client.cc
index 5fe4483d0466b298b80cedd8bb3cac0c8e8d583b..8244fb7afca10ae0d144cab5cbd208258715d9a0 100644
--- a/content/shell/browser/shell_content_browser_client.cc
+++ b/content/shell/browser/shell_content_browser_client.cc
@@ -150,10 +150,14 @@ bool ShellContentBrowserClient::DoesSiteRequireDedicatedProcess(
   DCHECK(command_line->HasSwitch(switches::kIsolateSitesForTesting));
   std::string pattern =
       command_line->GetSwitchValueASCII(switches::kIsolateSitesForTesting);
-  // Practically |origin| is the same as |effective_url.spec()|, except Origin
-  // serialization strips the trailing "/", which makes for cleaner patterns.
-  std::string origin = url::Origin(effective_url).Serialize();
-  return base::MatchPattern(origin, pattern);
+  url::Origin effective_url_origin(effective_url);
+  CHECK_EQ(effective_url_origin.scheme(), effective_url.scheme())
+      << "|effective_url| was not a canonical site URL";
+  // Practically |effective_url_origin.Serialize()| is the same as
+  // |effective_url.spec()|, except Origin serialization strips the trailing
+  // "/", which makes for cleaner wildcard patterns.
+  bool result = base::MatchPattern(effective_url_origin.Serialize(), pattern);
+  return result;
 }
 
 bool ShellContentBrowserClient::IsHandledURL(const GURL& url) {