[Startup Tracing] Add --trace-config-file flag

content/browser/browser_main_runner.cc

 // Copyright (c) 2012 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 "content/public/browser/browser_main_runner.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/debug/leak_annotations.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/profiler/scoped_profile.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/trace_event/trace_event.h"
 #include "base/tracked_objects.h"
+#include "components/tracing/trace_config_file.h"
 #include "components/tracing/tracing_switches.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/browser_shutdown_profile_dumper.h"
 #include "content/browser/notification_service_impl.h"
+#include "content/public/browser/tracing_controller.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
 #include "ui/base/ime/input_method_initializer.h"
 
+#if defined(OS_ANDROID)
+#include "content/browser/android/tracing_controller_android.h"
+#endif
+
 #if defined(OS_WIN)
 #include "base/win/win_util.h"
 #include "base/win/windows_version.h"
 #include "net/cert/sha256_legacy_support_win.h"
 #include "sandbox/win/src/sidestep/preamble_patcher.h"
 #include "ui/base/win/scoped_ole_initializer.h"
 #include "ui/gfx/switches.h"
 #include "ui/gfx/win/direct_write.h"
 #endif
 
@@ skipping 187 matching lines @@
     // Invoke leak detection now, to avoid dealing with shutdown-only leaks.
     // Normally this will have already happened in
     // BroserProcessImpl::ReleaseModule(), so this call has no effect. This is
     // only for processes which do not instantiate a BrowserProcess.
     // If leaks are found, the process will exit here.
     __lsan_do_leak_check();
 #endif
     // If startup tracing has not been finished yet, replace it's dumper
     // with special version, which would save trace file on exit (i.e.
     // startup tracing becomes a version of shutdown tracing).
+    // There are two cases:
+    // 1. Startup duration is not reached.
+    // 2. Or startup duration is not specified for --trace-config-file flag.
     scoped_ptr<BrowserShutdownProfileDumper> startup_profiler;
-    if (main_loop_->is_tracing_startup()) {
+    if (main_loop_->is_tracing_startup_for_duration()) {
       main_loop_->StopStartupTracingTimer();
       if (main_loop_->startup_trace_file() !=
           base::FilePath().AppendASCII("none")) {
         startup_profiler.reset(
             new BrowserShutdownProfileDumper(main_loop_->startup_trace_file()));
       }
+    } else if (tracing::TraceConfigFile::GetInstance()->IsEnabled() &&
+               TracingController::GetInstance()->IsRecording()) {
+      base::FilePath result_file;
+#if defined(OS_ANDROID)
+      TracingControllerAndroid::GenerateTracingFilePath(&result_file);
+#else
+      result_file = tracing::TraceConfigFile::GetInstance()->GetResultFile();
+#endif
+      startup_profiler.reset(new BrowserShutdownProfileDumper(result_file));
     }
 
     // The shutdown tracing got enabled in AttemptUserExit earlier, but someone
     // needs to write the result to disc. For that a dumper needs to get created
     // which will dump the traces to disc when it gets destroyed.
     const base::CommandLine& command_line =
         *base::CommandLine::ForCurrentProcess();
     scoped_ptr<BrowserShutdownProfileDumper> shutdown_profiler;
     if (command_line.HasSwitch(switches::kTraceShutdown)) {
       shutdown_profiler.reset(new BrowserShutdownProfileDumper(
@@ skipping 41 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMainRunnerImpl);
 };
 
 // static
 BrowserMainRunner* BrowserMainRunner::Create() {
   return new BrowserMainRunnerImpl();
 }
 
 }  // namespace content