net: Append base:: in the StringPrintf calls.

net/base/host_resolver_impl_unittest.cc

 // Copyright (c) 2010 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 "net/base/host_resolver_impl.h"
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/ref_counted.h"
 #include "base/string_util.h"
+#include "base/stringprintf.h"
 #include "net/base/address_list.h"
 #include "net/base/completion_callback.h"
 #include "net/base/mock_host_resolver.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log_unittest.h"
 #include "net/base/net_util.h"
 #include "net/base/sys_addrinfo.h"
 #include "net/base/test_completion_callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 107 matching lines @@
 class EchoingHostResolverProc : public HostResolverProc {
  public:
   EchoingHostResolverProc() : HostResolverProc(NULL) {}
 
   virtual int Resolve(const std::string& hostname,
                       AddressFamily address_family,
                       HostResolverFlags host_resolver_flags,
                       AddressList* addrlist,
                       int* os_error) {
     // Encode the request's hostname and address_family in the output address.
-    std::string ip_literal = StringPrintf("192.%d.%d.%d",
+    std::string ip_literal = base::StringPrintf("192.%d.%d.%d",
         static_cast<int>(hostname.size()),
         static_cast<int>(hostname[0]),
         static_cast<int>(address_family));
 
     return SystemHostResolverProc(ip_literal,
                                   ADDRESS_FAMILY_UNSPECIFIED,
                                   host_resolver_flags,
                                   addrlist, os_error);
   }
 };
@@ skipping 1489 matching lines @@
   EXPECT_EQ("192.1.98.2", NetAddressToString(addrlist[1].head()));
   EXPECT_EQ("192.1.98.1", NetAddressToString(addrlist[2].head()));
   EXPECT_EQ("192.1.98.1", NetAddressToString(addrlist[3].head()));
 }
 
 // TODO(cbentzel): Test a mix of requests with different HostResolverFlags.
 
 }  // namespace
 
 }  // namespace net