Improve TDI render process naming in the task manager.

content/test/content_browser_test_utils_internal.cc

Index: content/test/content_browser_test_utils_internal.cc
diff --git a/content/test/content_browser_test_utils_internal.cc b/content/test/content_browser_test_utils_internal.cc
index d3af538759c0d9d386e256d79e2e8770a202d622..76d6eb135525069e9cd6c629f9d45faef08a831e 100644
--- a/content/test/content_browser_test_utils_internal.cc
+++ b/content/test/content_browser_test_utils_internal.cc
@@ -228,7 +228,7 @@ std::string FrameTreeVisualizer::DepictFrameTree(FrameTreeNode* root) {
     SiteInstanceImpl* site_instance =
         static_cast<SiteInstanceImpl*>(legend_entry.second);
     std::string description = site_instance->GetSiteURL().spec();
-    if (site_instance->is_default_subframe_site_instance())
+    if (site_instance->IsDefaultSubframeSiteInstance())
       description = "default subframe process";
     base::StringAppendF(&result, "\n%s%s = %s", prefix,
                         legend_entry.first.c_str(), description.c_str());