Use StopChildProcess instead of base::KillProcess to kill a renderer process

chrome/browser/extensions/window_open_apitest.cc

 // Copyright (c) 2012 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/command_line.h"
 #include "base/memory/scoped_vector.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 383 matching lines @@
 
   // Wait on test messages to make sure the pages loaded.
   for (size_t i = 0; i < listeners.size(); ++i)
     ASSERT_TRUE(listeners[i]->WaitUntilSatisfied());
 
   // Crash the extension.
   extensions::ExtensionHost* extension_host =
       extensions::ProcessManager::Get(browser()->profile())
           ->GetBackgroundHostForExtension(extension->id());
   ASSERT_TRUE(extension_host);
-  base::KillProcess(extension_host->render_process_host()->GetHandle(),
-                    content::RESULT_CODE_KILLED, false);
+  extension_host->render_process_host()->Shutdown(content::RESULT_CODE_KILLED,
+                                                  false);
   WaitForExtensionCrash(extension->id());
 
   // Only expect panels to close. The rest stay open to show a sad-tab.
   EXPECT_TRUE(WaitForTabsAndPopups(browser(), 2, num_popups, 0));
 }
 #endif  // !defined(OS_CHROMEOS)
 
 #if defined(USE_ASH_PANELS)
 // This test is not applicable on Ash. The modified window.open behavior only
 // applies to non-Ash panel windows.
@@ skipping 87 matching lines @@
                      last_loaded_extension_id() + "/newtab.html"),
                  false,
                  &newtab));
 
   // Extension API should succeed.
   bool result = false;
   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(newtab, "testExtensionApi()",
                                                    &result));
   EXPECT_TRUE(result);
 }