Make net and ipc explicitly use the base namespace for Values.

net/test/spawned_test_server/local_test_server.cc

Index: net/test/spawned_test_server/local_test_server.cc
diff --git a/net/test/spawned_test_server/local_test_server.cc b/net/test/spawned_test_server/local_test_server.cc
index 375226a3a4ce7152509c4d3bb6cb98d52da9c422..34a6e66dd4feac6715f7a38344c44c8301ac8c59 100644
--- a/net/test/spawned_test_server/local_test_server.cc
+++ b/net/test/spawned_test_server/local_test_server.cc
@@ -198,7 +198,7 @@ bool LocalTestServer::AddCommandLineArguments(CommandLine* command_line) const {
     return false;
 
   // Serialize the argument dictionary into CommandLine.
-  for (DictionaryValue::Iterator it(arguments_dict); !it.IsAtEnd();
+  for (base::DictionaryValue::Iterator it(arguments_dict); !it.IsAtEnd();
        it.Advance()) {
     const base::Value& value = it.value();
     const std::string& key = it.key();