Add stats collection for telemetry startup.warm.blank_page test.

mandoline/tab/frame_connection.cc

Index: mandoline/tab/frame_connection.cc
diff --git a/mandoline/tab/frame_connection.cc b/mandoline/tab/frame_connection.cc
index 90dfd18d35887b0c004b6104c37ef37f902f19cc..fa258b0c717fe58a1a9f41256f019b8038458115 100644
--- a/mandoline/tab/frame_connection.cc
+++ b/mandoline/tab/frame_connection.cc
@@ -16,6 +16,7 @@
 #include "mojo/services/network/public/interfaces/cookie_store.mojom.h"
 #include "mojo/services/network/public/interfaces/url_loader_factory.mojom.h"
 #include "mojo/services/network/public/interfaces/web_socket_factory.mojom.h"
+#include "mojo/services/tracing/public/interfaces/tracing.mojom.h"
 
 #if defined(OS_LINUX) && !defined(OS_ANDROID)
 #include "components/font_service/public/interfaces/font_service.mojom.h"
@@ -57,6 +58,10 @@ void FrameConnection::Init(mojo::ApplicationImpl* app,
   surfaces_interfaces.push_back(mojo::Surface::Name_);
   filter->filter.insert("mojo:surfaces_service", surfaces_interfaces.Pass());
 
+  mojo::Array<mojo::String> tracing_interfaces;
+  tracing_interfaces.push_back(tracing::StartupPerformanceDataCollector::Name_);
+  filter->filter.insert("mojo:tracing", tracing_interfaces.Pass());
+
   mojo::Array<mojo::String> view_manager_interfaces;
   view_manager_interfaces.push_back(mojo::Gpu::Name_);
   view_manager_interfaces.push_back(mojo::ViewManagerRoot::Name_);