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

content/browser/web_contents/web_contents_impl.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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1457 matching lines @@
 
   scoped_refptr<SiteInstance> site_instance =
       params.opener_suppressed && !is_guest ?
       SiteInstance::CreateForURL(GetBrowserContext(), params.target_url) :
       GetSiteInstance();
 
   // A message to create a new window can only come from the active process for
   // this WebContentsImpl instance. If any other process sends the request,
   // it is invalid and the process must be terminated.
   if (GetRenderProcessHost()->GetID() != render_process_id) {
-    base::ProcessHandle process_handle =
-        RenderProcessHost::FromID(render_process_id)->GetHandle();
+    RenderProcessHost* rph = RenderProcessHost::FromID(render_process_id);
+    base::ProcessHandle process_handle = rph->GetHandle();
     if (process_handle != base::kNullProcessHandle) {
       RecordAction(
           base::UserMetricsAction("Terminate_ProcessMismatch_CreateNewWindow"));
-      base::KillProcess(process_handle, RESULT_CODE_KILLED, false);
+      rph->FastShutdown(RESULT_CODE_KILLED, false);
     }
     return;
   }
 
   // We must assign the SessionStorageNamespace before calling Init().
   //
   // http://crbug.com/142685
   const std::string& partition_id =
       GetContentClient()->browser()->
           GetStoragePartitionIdForSite(GetBrowserContext(),
@@ skipping 108 matching lines @@
 
 void WebContentsImpl::CreateNewWidget(int render_process_id,
                                       int route_id,
                                       bool is_fullscreen,
                                       blink::WebPopupType popup_type) {
   RenderProcessHost* process = GetRenderProcessHost();
   // A message to create a new widget can only come from the active process for
   // this WebContentsImpl instance. If any other process sends the request,
   // it is invalid and the process must be terminated.
   if (process->GetID() != render_process_id) {
-    base::ProcessHandle process_handle =
-        RenderProcessHost::FromID(render_process_id)->GetHandle();
+    RenderProcessHost* rph = RenderProcessHost::FromID(render_process_id);
+    base::ProcessHandle process_handle = rph->GetHandle();
     if (process_handle != base::kNullProcessHandle) {
       RecordAction(
           base::UserMetricsAction("Terminate_ProcessMismatch_CreateNewWidget"));
-      base::KillProcess(process_handle, RESULT_CODE_KILLED, false);
+      rph->FastShutdown(RESULT_CODE_KILLED, false);
     }
     return;
   }
 
   RenderWidgetHostImpl* widget_host =
       new RenderWidgetHostImpl(this, process, route_id, IsHidden());
   created_widgets_.insert(widget_host);
 
   RenderWidgetHostViewBase* widget_view =
       static_cast<RenderWidgetHostViewBase*>(
@@ skipping 2725 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content