Re-land: Only allow HTTP/0.9 support on default ports.

chrome/browser/io_thread.h

Index: chrome/browser/io_thread.h
diff --git a/chrome/browser/io_thread.h b/chrome/browser/io_thread.h
index 6bf09ef6f50a8a99151cdc89094d0d44e11b8925..62fbb9f8e3e083c702462efa2d060d2588b74bfc 100644
--- a/chrome/browser/io_thread.h
+++ b/chrome/browser/io_thread.h
@@ -307,6 +307,7 @@ class IOThread : public content::BrowserThreadDelegate {
   static void ConfigureParamsFromFieldTrialsAndCommandLine(
       const base::CommandLine& command_line,
       bool is_quic_allowed_by_policy,
+      bool http_09_on_non_default_ports_enabled,
       net::HttpNetworkSession::Params* params);
 
   // TODO(willchan): Remove proxy script fetcher context since it's not
@@ -388,6 +389,9 @@ class IOThread : public content::BrowserThreadDelegate {
   // True if QUIC is allowed by policy.
   bool is_quic_allowed_by_policy_;
 
+  // True if HTTP/0.9 is allowed on non-default ports by policy.
+  bool http_09_on_non_default_ports_enabled_;
+
   const base::TimeTicks creation_time_;
 
   // Callback for updating data use prefs which needs to be initialized on UI