Replicating WebFrame::uniqueName across renderers.

content/browser/frame_host/render_frame_message_filter.cc

Index: content/browser/frame_host/render_frame_message_filter.cc
diff --git a/content/browser/frame_host/render_frame_message_filter.cc b/content/browser/frame_host/render_frame_message_filter.cc
index 21a811a85a908f35bf29fc5a07096680dff3fc47..0c60f979128b74471f5e6007ecd1b93c308bf2be 100644
--- a/content/browser/frame_host/render_frame_message_filter.cc
+++ b/content/browser/frame_host/render_frame_message_filter.cc
@@ -52,6 +52,7 @@ void CreateChildFrameOnUI(
     int parent_routing_id,
     blink::WebTreeScopeType scope,
     const std::string& frame_name,
+    const std::string& frame_unique_name,
     blink::WebSandboxFlags sandbox_flags,
     const blink::WebFrameOwnerProperties& frame_owner_properties,
     int new_routing_id) {
@@ -62,7 +63,7 @@ void CreateChildFrameOnUI(
   // processing a subframe creation message.
   if (render_frame_host) {
     render_frame_host->OnCreateChildFrame(new_routing_id, scope, frame_name,
-                                          sandbox_flags,
+                                          frame_unique_name, sandbox_flags,
                                           frame_owner_properties);
   }
 }
@@ -326,18 +327,15 @@ bool RenderFrameMessageFilter::OnMessageReceived(const IPC::Message& message) {
 }
 
 void RenderFrameMessageFilter::OnCreateChildFrame(
-    int parent_routing_id,
-    blink::WebTreeScopeType scope,
-    const std::string& frame_name,
-    blink::WebSandboxFlags sandbox_flags,
-    const blink::WebFrameOwnerProperties& frame_owner_properties,
+    const FrameHostMsg_CreateChildFrame_Params& params,
     int* new_routing_id) {
   *new_routing_id = render_widget_helper_->GetNextRoutingID();
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
-      base::Bind(&CreateChildFrameOnUI, render_process_id_, parent_routing_id,
-                 scope, frame_name, sandbox_flags, frame_owner_properties,
-                 *new_routing_id));
+      base::Bind(&CreateChildFrameOnUI, render_process_id_,
+                 params.parent_routing_id, params.scope, params.frame_name,
+                 params.frame_unique_name, params.sandbox_flags,
+                 params.frame_owner_properties, *new_routing_id));
 }
 
 void RenderFrameMessageFilter::OnSetCookie(int render_frame_id,