Add support for writing system traces at startup

content/browser/android/tracing_intent_handler.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/browser/android/tracing_intent_handler.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "content/public/browser/trace_controller.h"
 #include "jni/TracingIntentHandler_jni.h"
 
 namespace content {
 
 TracingIntentHandler* g_trace_intent_handler = NULL;
 
 TracingIntentHandler::TracingIntentHandler(const base::FilePath& path)
-    : TraceSubscriberStdio(path) {
+    : TraceSubscriberStdio(path, FILE_TYPE_ARRAY, false) {
   TraceController::GetInstance()->BeginTracing(
       this,
       std::string("-test*"),
       base::debug::TraceLog::RECORD_UNTIL_FULL);
 }
 
 TracingIntentHandler::~TracingIntentHandler() {
 }
 
 void TracingIntentHandler::OnEndTracingComplete() {
@@ skipping 18 matching lines @@
   DCHECK(!g_trace_intent_handler);
   g_trace_intent_handler->OnEndTracing();
   g_trace_intent_handler = NULL;
 }
 
 bool RegisterTracingIntentHandler(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content