mandoline: Add automatic tracing at mojo call sites.

components/web_view/frame_connection.cc

 // Copyright 2015 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 "components/web_view/frame_connection.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "components/clipboard/public/interfaces/clipboard.mojom.h"
 #include "components/mus/public/interfaces/gpu.mojom.h"
@@ skipping 73 matching lines @@
   network_service_interfaces.push_back(mojo::WebSocketFactory::Name_);
   filter->filter.insert("mojo:network_service",
                         network_service_interfaces.Pass());
 
   mojo::Array<mojo::String> clipboard_interfaces;
   clipboard_interfaces.push_back(mojo::Clipboard::Name_);
   filter->filter.insert("mojo:clipboard", clipboard_interfaces.Pass());
 
   mojo::Array<mojo::String> tracing_interfaces;
   tracing_interfaces.push_back(tracing::StartupPerformanceDataCollector::Name_);
+  tracing_interfaces.push_back(tracing::TraceCollector::Name_);
   filter->filter.insert("mojo:tracing", tracing_interfaces.Pass());
 
   mojo::Array<mojo::String> window_manager_interfaces;
   window_manager_interfaces.push_back(mus::mojom::Gpu::Name_);
   window_manager_interfaces.push_back(mus::mojom::WindowTreeHostFactory::Name_);
   filter->filter.insert("mojo:mus", window_manager_interfaces.Pass());
 
   mojo::Array<mojo::String> test_runner_interfaces;
   test_runner_interfaces.push_back(LayoutTestRunner::Name_);
   filter->filter.insert("mojo:web_view_test_runner",
@@ skipping 19 matching lines @@
 }
 
 uint32_t FrameConnection::GetContentHandlerID() const {
   uint32_t content_handler_id = mojo::Shell::kInvalidContentHandlerID;
   if (!application_connection_->GetContentHandlerID(&content_handler_id))
     NOTREACHED();
   return content_handler_id;
 }
 
 }  // namespace web_view