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

chrome/browser/ui/zoom/zoom_controller_browsertest.cc

Index: chrome/browser/ui/zoom/zoom_controller_browsertest.cc
diff --git a/chrome/browser/ui/zoom/zoom_controller_browsertest.cc b/chrome/browser/ui/zoom/zoom_controller_browsertest.cc
index 4d0ffd51362cf99807cbdc350c50f998979f843c..b7dc3626d022e7210af6dabec7cd46fb02c7a959 100644
--- a/chrome/browser/ui/zoom/zoom_controller_browsertest.cc
+++ b/chrome/browser/ui/zoom/zoom_controller_browsertest.cc
@@ -89,7 +89,7 @@ IN_PROC_BROWSER_TEST_F(ZoomControllerBrowserTest,
   {
     content::RenderProcessHostWatcher crash_observer(
         host, content::RenderProcessHostWatcher::WATCH_FOR_PROCESS_EXIT);
-    base::KillProcess(host->GetHandle(), 0, false);
+    host->FastShutdown(0, false);
     crash_observer.Wait();
   }
   EXPECT_FALSE(web_contents->GetRenderViewHost()->IsRenderViewLive());