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

chrome/browser/extensions/extension_crash_recovery_browsertest.cc

Index: chrome/browser/extensions/extension_crash_recovery_browsertest.cc
diff --git a/chrome/browser/extensions/extension_crash_recovery_browsertest.cc b/chrome/browser/extensions/extension_crash_recovery_browsertest.cc
index 072aa4d14f926538f8e3939c7aa59e37f64ca906..9a40df84c1c27cb84de9bf816976be6a3a10dce7 100644
--- a/chrome/browser/extensions/extension_crash_recovery_browsertest.cc
+++ b/chrome/browser/extensions/extension_crash_recovery_browsertest.cc
@@ -76,8 +76,8 @@ class ExtensionCrashRecoveryTestBase : public ExtensionBrowserTest {
         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);
     ASSERT_TRUE(WaitForExtensionCrash(extension_id));
     ASSERT_FALSE(GetProcessManager()->
                  GetBackgroundHostForExtension(extension_id));