net: Add NET_API to net/base

net/base/mapped_host_resolver.h

 // Copyright (c) 2011 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 NET_BASE_MAPPED_HOST_RESOLVER_H_
 #define NET_BASE_MAPPED_HOST_RESOLVER_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "net/base/host_mapping_rules.h"
 #include "net/base/host_resolver.h"
+#include "net/base/net_api.h"
 
 namespace net {
 
 // This class wraps an existing HostResolver instance, but modifies the
 // request before passing it off to |impl|. This is different from
 // MockHostResolver which does the remapping at the HostResolverProc
 // layer, so it is able to preserve the effectiveness of the cache.
-class MappedHostResolver : public HostResolver {
+class NET_API MappedHostResolver : public HostResolver {
  public:
   // Creates a MappedHostResolver that forwards all of its requests through
   // |impl|.  It takes ownership of |impl|.
   explicit MappedHostResolver(HostResolver* impl);
   virtual ~MappedHostResolver();
 
   // Adds a rule to this mapper. The format of the rule can be one of:
   //
   //   "MAP" <hostname_pattern> <replacement_host> [":" <replacement_port>]
   //   "EXCLUDE" <hostname_pattern>
@@ skipping 23 matching lines @@
 
  private:
   scoped_ptr<HostResolver> impl_;
 
   HostMappingRules rules_;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_MAPPED_HOST_RESOLVER_H_