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

mojo/services/tracing/tracing_app.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 "mojo/services/tracing/tracing_app.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "mojo/application/public/cpp/application_connection.h"
 #include "mojo/services/tracing/trace_data_sink.h"
@@ skipping 20 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(CollectorImpl);
 };
 
 TracingApp::TracingApp() {}
 
 TracingApp::~TracingApp() {}
 
 bool TracingApp::ConfigureIncomingConnection(
     mojo::ApplicationConnection* connection) {
   connection->AddService<TraceCoordinator>(this);
+  connection->AddService<StartupPerformanceController>(this);
 
   // If someone connects to us they may want to use the TraceCoordinator
   // interface and/or they may want to expose themselves to be traced. Attempt
   // to connect to the TraceController interface to see if the application
   // connecting to us wants to be traced. They can refuse the connection or
   // close the pipe if not.
   TraceControllerPtr controller_ptr;
   connection->ConnectToService(&controller_ptr);
-  controller_ptrs_.AddInterfacePtr(controller_ptr.Pass());
+  if (controller_ptr.get())
+    controller_ptrs_.AddInterfacePtr(controller_ptr.Pass());
   return true;
 }
 
 void TracingApp::Create(
     mojo::ApplicationConnection* connection,
     mojo::InterfaceRequest<TraceCoordinator> request) {
   coordinator_bindings_.AddBinding(this, request.Pass());
 }
 
+void TracingApp::Create(
+    mojo::ApplicationConnection* connection,
+    mojo::InterfaceRequest<StartupPerformanceController> request) {
+  startup_performance_controller_bindings_.AddBinding(this, request.Pass());
+}
+
 void TracingApp::Start(mojo::ScopedDataPipeProducerHandle stream,
                        const mojo::String& categories) {
   sink_.reset(new TraceDataSink(stream.Pass()));
   controller_ptrs_.ForAllPtrs(
       [categories, this](TraceController* controller) {
         TraceDataCollectorPtr ptr;
         collector_impls_.push_back(
             new CollectorImpl(GetProxy(&ptr), sink_.get()));
         controller->StartTracing(categories, ptr.Pass());
       });
 }
 
 void TracingApp::StopAndFlush() {
   controller_ptrs_.ForAllPtrs(
       [](TraceController* controller) { controller->StopTracing(); });
 
   // TODO: We really should keep track of how many connections we have here
   // and flush + reset the sink after we receive a EndTracing or a detect a
   // pipe closure on all pipes.
   base::MessageLoop::current()->PostDelayedTask(
       FROM_HERE,
       base::Bind(&TracingApp::AllDataCollected, base::Unretained(this)),
       base::TimeDelta::FromSeconds(1));
 }
 
+void TracingApp::SetShellProcessCreationTime(int64 time) {
+  if (startup_performance_times_.shell_process_creation_time == 0)
+    startup_performance_times_.shell_process_creation_time = time;
+}
+
+void TracingApp::SetBrowserMessageLoopStartTime(int64 time) {
+  if (startup_performance_times_.browser_message_loop_start_time == 0)
+    startup_performance_times_.browser_message_loop_start_time = time;
+}
+
+void TracingApp::SetBrowserWindowDisplayTime(int64 time) {
+  if (startup_performance_times_.browser_window_display_time == 0)
+    startup_performance_times_.browser_window_display_time = time;
+}
+
+void TracingApp::SetBrowserOpenTabsTime(int64 time) {
+  if (startup_performance_times_.browser_open_tabs_time == 0)
+    startup_performance_times_.browser_open_tabs_time = time;
+}
+
+void TracingApp::SetFirstWebContentsMainFrameLoadTime(int64 time) {
+  if (startup_performance_times_.first_web_contents_main_frame_load_time == 0)
+    startup_performance_times_.first_web_contents_main_frame_load_time = time;
+}
+
+void TracingApp::SetFirstVisuallyNonEmptyLayoutTime(int64 time) {
+  if (startup_performance_times_.first_visually_non_empty_layout_time == 0)
+    startup_performance_times_.first_visually_non_empty_layout_time = time;
+}
+
+void TracingApp::GetStartupPerformanceTimes(
+    const GetStartupPerformanceTimesCallback& callback) {
+  callback.Run(startup_performance_times_.Clone().Pass());

[yzshen1, 2015/08/13 15:59:12]

nit: Pass() could be omitted in this case.

[msw, 2015/08/14 23:20:35]

Done.

+}
+
 void TracingApp::AllDataCollected() {
   collector_impls_.clear();
   sink_->Flush();
 }
 
 }  // namespace tracing