NOT YET READY: Improve granularity of window namespaces in Blink.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 44f62f7fea9538cfd3073a4019aa1148fd36893c..de3edcdad701bd089897e566fe29fe7802137105 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -568,9 +568,14 @@ void RenderViewImpl::Initialize(
 #endif
   display_mode_ = params.initial_size.display_mode;
 
-  webview_ = WebView::Create(this, is_hidden()
-                                       ? blink::kWebPageVisibilityStateHidden
-                                       : blink::kWebPageVisibilityStateVisible);
+  WebFrame* opener_frame =
+      RenderFrameImpl::ResolveOpener(params.opener_frame_route_id);
+
+  webview_ =
+      WebView::Create(this,
+                      is_hidden() ? blink::kWebPageVisibilityStateHidden
+                                  : blink::kWebPageVisibilityStateVisible,
+                      opener_frame ? opener_frame->View() : nullptr);
   RenderWidget::Init(show_callback, webview_->GetWidget());
 
   g_view_map.Get().insert(std::make_pair(webview(), this));
@@ -622,9 +627,6 @@ void RenderViewImpl::Initialize(
 
   ApplyBlinkSettings(command_line, webview()->GetSettings());
 
-  WebFrame* opener_frame =
-      RenderFrameImpl::ResolveOpener(params.opener_frame_route_id);
-
   if (params.main_frame_routing_id != MSG_ROUTING_NONE) {
     main_render_frame_ = RenderFrameImpl::CreateMainFrame(
         this, params.main_frame_routing_id, params.main_frame_widget_routing_id,