Add field trial stats for alternate_protocol.

chrome/renderer/navigation_state.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_NAVIGATION_STATE_H_
 #define CHROME_RENDERER_NAVIGATION_STATE_H_
 
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "chrome/common/page_transition_types.h"
@@ skipping 205 matching lines @@
     return cache_policy_override_set_;
   }
 
   // Indicator if SPDY was used as part of this page load.
   void set_was_fetched_via_spdy(bool value) { was_fetched_via_spdy_ = value; }
   bool was_fetched_via_spdy() const { return was_fetched_via_spdy_; }
 
   void set_was_npn_negotiated(bool value) { was_npn_negotiated_ = value; }
   bool was_npn_negotiated() const { return was_npn_negotiated_; }
 
+  void set_was_alternate_protocol_available(bool value) {
+    was_alternate_protocol_available_ = value;
+  }
+  bool was_alternate_protocol_available() const {
+    return was_alternate_protocol_available_;
+  }
+
   void set_was_fetched_via_proxy(bool value) {
     was_fetched_via_proxy_ = value;
   }
   bool was_fetched_via_proxy() const { return was_fetched_via_proxy_; }
 
   // Whether the frame text contents was translated to a different language.
   void set_was_translated(bool value) { was_translated_ = value; }
   bool was_translated() const { return was_translated_; }
 
  private:
@@ skipping 44 matching lines @@
 
   bool cache_policy_override_set_;
   WebKit::WebURLRequest::CachePolicy cache_policy_override_;
 
   scoped_ptr<UserScriptIdleScheduler> user_script_idle_scheduler_;
 
   bool was_fetched_via_spdy_;
   bool was_npn_negotiated_;
   bool was_fetched_via_proxy_;
   bool was_translated_;
+  bool was_alternate_protocol_available_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationState);
 };
 
 #endif  // CHROME_RENDERER_NAVIGATION_STATE_H_