Restructure contents of blimp/client.

blimp/client/feature/navigation_feature.cc

 // Copyright 2015 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.
 
-#include "blimp/client/session/navigation_feature.h"
+#include "blimp/client/feature/navigation_feature.h"
+
+#include <map>
+#include <string>
 
 #include "blimp/common/create_blimp_message.h"
 #include "blimp/common/proto/blimp_message.pb.h"
 #include "blimp/common/proto/navigation.pb.h"
 #include "net/base/net_errors.h"
 #include "url/gurl.h"
 
 namespace blimp {
 namespace client {
 
@@ skipping 104 matching lines @@
 NavigationFeature::NavigationFeatureDelegate* NavigationFeature::FindDelegate(
     const int tab_id) {
   DelegateMap::const_iterator it = delegates_.find(tab_id);
   if (it != delegates_.end())
     return it->second;
   return nullptr;
 }
 
 }  // namespace client
 }  // namespace blimp