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

mojo/runner/context.cc

Index: mojo/runner/context.cc
diff --git a/mojo/runner/context.cc b/mojo/runner/context.cc
index 40c62772cdaa23706a034b7670a9624a915595ae..485b2f9a073974e26f8a123a77d2c747942f673f 100644
--- a/mojo/runner/context.cc
+++ b/mojo/runner/context.cc
@@ -14,6 +14,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/path_service.h"
+#include "base/process/process_info.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
@@ -33,7 +34,8 @@
 #include "mojo/runner/in_process_native_runner.h"
 #include "mojo/runner/out_of_process_native_runner.h"
 #include "mojo/runner/switches.h"
-#include "mojo/services/tracing/tracing.mojom.h"
+#include "mojo/services/tracing/public/cpp/switches.h"
+#include "mojo/services/tracing/public/interfaces/tracing.mojom.h"
 #include "mojo/shell/application_loader.h"
 #include "mojo/shell/application_manager.h"
 #include "mojo/shell/switches.h"
@@ -304,15 +306,27 @@ bool Context::Init() {
   InitContentHandlers(&application_manager_, command_line);
   InitNativeOptions(&application_manager_, command_line);
 
+  ServiceProviderPtr service_provider_ptr;
   ServiceProviderPtr tracing_service_provider_ptr;
   new TracingServiceProvider(GetProxy(&tracing_service_provider_ptr));
   mojo::URLRequestPtr request(mojo::URLRequest::New());
   request->url = mojo::String::From("mojo:tracing");
   application_manager_.ConnectToApplication(
-      nullptr, request.Pass(), std::string(), GURL(""), nullptr,
-      tracing_service_provider_ptr.Pass(),
+      nullptr, request.Pass(), std::string(), GURL(),
+      GetProxy(&service_provider_ptr), tracing_service_provider_ptr.Pass(),
       shell::GetPermissiveCapabilityFilter(), base::Closure());
 
+  // Record the shell process creation time for performance testing.
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          tracing::kEnableStatsCollectionBindings)) {
+    tracing::StartupPerformanceDataCollectorPtr collector;
+    service_provider_ptr->ConnectToService(
+        tracing::StartupPerformanceDataCollector::Name_,
+        GetProxy(&collector).PassMessagePipe());
+    const base::Time creation_time = base::CurrentProcessInfo::CreationTime();
+    collector->SetShellProcessCreationTime(creation_time.ToInternalValue());
+  }
+
   InitDevToolsServiceIfNeeded(&application_manager_, command_line);
 
   return true;