Generate all extension schema namespaces as "api" and instead vary the generated bundle names.

extensions/browser/api/system_network/system_network_apitest.cc

 // Copyright 2013 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 "base/memory/ref_counted.h"
 #include "base/strings/stringprintf.h"
 #include "extensions/browser/api/system_network/system_network_api.h"
 #include "extensions/browser/api_test_utils.h"
 #include "extensions/common/test_util.h"
 #include "extensions/shell/test/shell_apitest.h"
 #include "extensions/test/extension_test_message_listener.h"
 
 using extensions::Extension;
 using extensions::api_test_utils::RunFunctionAndReturnSingleResult;
-using extensions::core_api::SystemNetworkGetNetworkInterfacesFunction;
-using extensions::core_api::system_network::NetworkInterface;
+using extensions::api::SystemNetworkGetNetworkInterfacesFunction;
+using extensions::api::system_network::NetworkInterface;
 
 namespace {
 
 class SystemNetworkApiTest : public extensions::ShellApiTest {};
 
 }  // namespace
 
 IN_PROC_BROWSER_TEST_F(SystemNetworkApiTest, SystemNetworkExtension) {
   ASSERT_TRUE(RunAppTest("system/network")) << message_;
 }
@@ skipping 25 matching lines @@
                                            &network_interface));
 
     LOG(INFO) << "Network interface: address=" << network_interface.address
               << ", name=" << network_interface.name
               << ", prefix length=" << network_interface.prefix_length;
     ASSERT_NE(std::string(), network_interface.address);
     ASSERT_NE(std::string(), network_interface.name);
     ASSERT_LE(0, network_interface.prefix_length);
   }
 }