Cleanup remaining class/struct fwd declarations

native_client_sdk/src/tests/nacl_io_test/fake_ppapi/fake_host_resolver_interface.h

 // Copyright 2014 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 TESTS_NACL_IO_TEST_FAKE_HOST_RESOLVER_INTERFACE_H_
 #define TESTS_NACL_IO_TEST_FAKE_HOST_RESOLVER_INTERFACE_H_
 
 #include <ppapi/c/ppb_host_resolver.h>
 
 #include <netinet/in.h>
 #include <string>
 #include <vector>
 
 #include "nacl_io/pepper_interface.h"
 #include "sdk_util/macros.h"
 
 class FakePepperInterface;
-class FakeVarManager;
 
 class FakeHostResolverInterface : public nacl_io::HostResolverInterface {
  public:
   explicit FakeHostResolverInterface(FakePepperInterface* ppapi);
 
   virtual PP_Resource Create(PP_Instance);
 
   virtual int32_t Resolve(PP_Resource,
                           const char*,
                           uint16_t,
                           const PP_HostResolver_Hint* hints,
                           PP_CompletionCallback);
 
   virtual PP_Var GetCanonicalName(PP_Resource);
   virtual uint32_t GetNetAddressCount(PP_Resource);
   virtual PP_Resource GetNetAddress(PP_Resource, uint32_t);
 
   std::string fake_hostname;
   std::vector<struct sockaddr_in> fake_addresses_v4;
   std::vector<struct sockaddr_in6> fake_addresses_v6;
 
  private:
   FakePepperInterface* ppapi_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeHostResolverInterface);
 };
 
 #endif  // TESTS_NACL_IO_TEST_FAKE_HOST_RESOLVER_INTERFACE_H_