Delete the tracing service

services/service_manager/standalone/context.cc

Index: services/service_manager/standalone/context.cc
diff --git a/services/service_manager/standalone/context.cc b/services/service_manager/standalone/context.cc
index 998603612d12e2829df1cc25099dc8f4295d2724..dc401e387f1d5dcfa59a0794133cb684e068cf17 100644
--- a/services/service_manager/standalone/context.cc
+++ b/services/service_manager/standalone/context.cc
@@ -26,19 +26,13 @@
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
-#include "components/tracing/common/tracing_switches.h"
 #include "services/catalog/catalog.h"
 #include "services/service_manager/connect_params.h"
 #include "services/service_manager/connect_util.h"
 #include "services/service_manager/runner/common/switches.h"
 #include "services/service_manager/runner/host/service_process_launcher.h"
 #include "services/service_manager/service_manager.h"
-#include "services/service_manager/standalone/tracer.h"
 #include "services/service_manager/switches.h"
-#include "services/tracing/public/cpp/provider.h"
-#include "services/tracing/public/cpp/switches.h"
-#include "services/tracing/public/interfaces/constants.mojom.h"
-#include "services/tracing/public/interfaces/tracing.mojom.h"
 
 #if defined(OS_MACOSX)
 #include "services/service_manager/public/cpp/standalone_service/mach_broker.h"
@@ -85,16 +79,6 @@ Context::Context(
     std::unique_ptr<base::Value> catalog_contents)
     : main_entry_time_(base::Time::Now()) {
   TRACE_EVENT0("service_manager", "Context::Context");
-  const base::CommandLine& command_line =
-      *base::CommandLine::ForCurrentProcess();
-
-  bool trace_startup = command_line.HasSwitch(::switches::kTraceStartup);
-  if (trace_startup) {
-    tracer_.Start(
-        command_line.GetSwitchValueASCII(::switches::kTraceStartup),
-        command_line.GetSwitchValueASCII(::switches::kTraceStartupDuration),
-        "mojo_runner.trace");
-  }
 
   blocking_pool_ = new base::SequencedWorkerPool(
       kThreadPoolMaxThreads, "blocking_pool", base::TaskPriority::USER_VISIBLE);
@@ -108,41 +92,6 @@ Context::Context(
   service_manager_.reset(
       new ServiceManager(std::move(service_process_launcher_factory),
                          catalog_->TakeService()));
-
-  bool enable_stats_collection_bindings =
-      command_line.HasSwitch(tracing::kEnableStatsCollectionBindings);
-
-  if (enable_stats_collection_bindings ||
-      command_line.HasSwitch(switches::kEnableTracing)) {
-    Identity source_identity = CreateServiceManagerIdentity();
-    Identity tracing_identity(tracing::mojom::kServiceName, mojom::kRootUserID);
-    tracing::mojom::FactoryPtr factory;
-    BindInterface(service_manager(), source_identity, tracing_identity,
-                  &factory);
-    provider_.InitializeWithFactory(&factory);
-
-    if (command_line.HasSwitch(tracing::kTraceStartup)) {
-      tracing::mojom::CollectorPtr coordinator;
-      BindInterface(service_manager(), source_identity, tracing_identity,
-                    &coordinator);
-      tracer_.StartCollectingFromTracingService(std::move(coordinator));
-    }
-
-    // Record the service manager startup metrics used for performance testing.
-    if (enable_stats_collection_bindings) {
-      tracing::mojom::StartupPerformanceDataCollectorPtr collector;
-      BindInterface(service_manager(), source_identity, tracing_identity,
-                    &collector);
-#if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
-      // CurrentProcessInfo::CreationTime is only defined on some platforms.
-      const base::Time creation_time = base::CurrentProcessInfo::CreationTime();
-      collector->SetServiceManagerProcessCreationTime(
-          creation_time.ToInternalValue());
-#endif
-      collector->SetServiceManagerMainEntryPointTime(
-          main_entry_time_.ToInternalValue());
-    }
-  }
 }
 
 Context::~Context() { blocking_pool_->Shutdown(); }