Improve TDI render process naming in the task manager.

content/browser/site_instance_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/site_instance_impl.h"
 
 #include "content/browser/browsing_instance.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/frame_host/debug_urls.h"
 #include "content/browser/frame_host/frame_tree_node.h"
@@ skipping 221 matching lines @@
   return browsing_instance_->GetDefaultSubframeSiteInstance();
 }
 
 bool SiteInstanceImpl::RequiresDedicatedProcess() {
   if (!has_site_)
     return false;
 
   return DoesSiteRequireDedicatedProcess(GetBrowserContext(), site_);
 }
 
+bool SiteInstanceImpl::IsDefaultSubframeSiteInstance() const {
+  return is_default_subframe_site_instance_;
+}
+
 void SiteInstanceImpl::IncrementActiveFrameCount() {
   active_frame_count_++;
 }
 
 void SiteInstanceImpl::DecrementActiveFrameCount() {
   if (--active_frame_count_ == 0) {
     for (auto& observer : observers_)
       observer.ActiveFrameCountIsZero(this);
   }
 }
@@ skipping 184 matching lines @@
             browsing_instance_->browser_context(), site_))
       return;
 
     ChildProcessSecurityPolicyImpl* policy =
         ChildProcessSecurityPolicyImpl::GetInstance();
     policy->LockToOrigin(process_->GetID(), site_);
   }
 }
 
 }  // namespace content