Plumb the correct owner document through DocumentInit::m_owner.

content/shell/renderer/layout_test/blink_test_runner.cc

Index: content/shell/renderer/layout_test/blink_test_runner.cc
diff --git a/content/shell/renderer/layout_test/blink_test_runner.cc b/content/shell/renderer/layout_test/blink_test_runner.cc
index cfcfcf215eb025e6f4a0dbe10fb993b1607d1a82..e52390606c8a6c4b7181b05ba9f891022b8f3e38 100644
--- a/content/shell/renderer/layout_test/blink_test_runner.cc
+++ b/content/shell/renderer/layout_test/blink_test_runner.cc
@@ -841,7 +841,7 @@ void BlinkTestRunner::DidFailProvisionalLoad(WebLocalFrame* frame,
 
 // Public methods - -----------------------------------------------------------
 
-void BlinkTestRunner::Reset() {
+void BlinkTestRunner::Reset(bool for_new_test) {
   // The proxy_ is always non-NULL, it is set right after construction.
   proxy_->set_widget(render_view()->GetWebView());
   proxy_->Reset();
@@ -851,9 +851,11 @@ void BlinkTestRunner::Reset() {
   current_entry_indexes_.clear();
 
   render_view()->ClearEditCommands();
-  if (render_view()->GetWebView()->mainFrame()->isWebLocalFrame())
-    render_view()->GetWebView()->mainFrame()->setName(WebString());
-  render_view()->GetWebView()->mainFrame()->clearOpener();
+  if (for_new_test)  {

[dcheng, 2016/02/23 00:11:32]

I'm not quite sure what the right thing to do here is: it doesn't make sense to
always blow these away. The problem is that keeping this here would blow away
the opener that gets set when creating the new view in
RenderViewImpl::Initialize, since this bit runs /after/ the render view is
already initialized.

There are probably other things that this should guard, but I just made the
minimum logical change to get layout tests working.

+    if (render_view()->GetWebView()->mainFrame()->isWebLocalFrame())
+      render_view()->GetWebView()->mainFrame()->setName(WebString());
+    render_view()->GetWebView()->mainFrame()->clearOpener();
+  }
 
   // Resetting the internals object also overrides the WebPreferences, so we
   // have to sync them to WebKit again.
@@ -1001,7 +1003,7 @@ void BlinkTestRunner::OnSessionHistory(
 
 void BlinkTestRunner::OnReset() {
   LayoutTestRenderProcessObserver::GetInstance()->test_interfaces()->ResetAll();
-  Reset();
+  Reset(true /* for_new_test */);
   // Navigating to about:blank will make sure that no new loads are initiated
   // by the renderer.
   render_view()->GetWebView()->mainFrame()->loadRequest(