Plumb the correct owner document through DocumentInit::m_owner.

content/shell/renderer/layout_test/layout_test_content_renderer_client.cc

 // Copyright (c) 2014 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/shell/renderer/layout_test/layout_test_content_renderer_client.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "components/test_runner/app_banner_client.h"
@@ skipping 51 matching lines @@
 void LayoutTestContentRendererClient::RenderFrameCreated(
     RenderFrame* render_frame) {
   new LayoutTestRenderFrameObserver(render_frame);
 }
 
 void LayoutTestContentRendererClient::RenderViewCreated(
     RenderView* render_view) {
   new ShellRenderViewObserver(render_view);
 
   BlinkTestRunner* test_runner = BlinkTestRunner::Get(render_view);
-  test_runner->Reset();
+  test_runner->Reset(false /* for_new_test */);
   render_view->GetWebView()->setSpellCheckClient(
       test_runner->proxy()->GetSpellCheckClient());
 
   render_view->GetWebView()->setCredentialManagerClient(
       test_runner->proxy()->GetCredentialManagerClientMock());
   test_runner::WebTestDelegate* delegate =
       LayoutTestRenderProcessObserver::GetInstance()->test_delegate();
   if (delegate == static_cast<test_runner::WebTestDelegate*>(test_runner))
     LayoutTestRenderProcessObserver::GetInstance()->SetMainWindow(render_view);
 }
@@ skipping 77 matching lines @@
     LayoutTestRenderProcessObserver::GetInstance()->SetTestDelegate(
         test_runner);
   }
   proxy->SetInterfaces(
       LayoutTestRenderProcessObserver::GetInstance()->test_interfaces());
   test_runner->proxy()->SetDelegate(
       LayoutTestRenderProcessObserver::GetInstance()->test_delegate());
 }
 
 }  // namespace content