fix about:memory and memory histograms to show extensions more clearly

chrome/browser/browser_about_handler.cc

Index: chrome/browser/browser_about_handler.cc
diff --git a/chrome/browser/browser_about_handler.cc b/chrome/browser/browser_about_handler.cc
index 715f46070b1d1528ac4ea74c203f53d9002334fe..7ede87f87799391351c7da7a25955860dc63fed3 100644
--- a/chrome/browser/browser_about_handler.cc
+++ b/chrome/browser/browser_about_handler.cc
@@ -851,7 +851,9 @@ void AboutMemoryHandler::AppendProcess(ListValue* child_data,
   child_data->Append(child);
   BindProcessMetrics(child, info);
 
-  std::string child_label(ChildProcessInfo::GetTypeNameInEnglish(info->type));
+  std::string child_label(
+      ChildProcessInfo::GetFullTypeNameInEnglish(info->type,
+                                                 info->renderer_type));
   if (info->is_diagnostics)
     child_label.append(" (diagnostics)");
   child->SetString("child_name", child_label);