Update monet.

mojo/common/trace_controller_impl.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/common/trace_controller_impl.h"
-
-#include "base/logging.h"
-#include "base/trace_event/trace_event.h"
-#include "mojo/public/cpp/application/application_connection.h"
-#include "mojo/public/cpp/application/application_impl.h"
-
-namespace mojo {
-
-TraceControllerImpl::TraceControllerImpl(
-    InterfaceRequest<tracing::TraceController> request)
-    : tracing_already_started_(false), binding_(this, request.Pass()) {
-}
-
-TraceControllerImpl::~TraceControllerImpl() {
-}
-
-void TraceControllerImpl::StartTracing(
-    const String& categories,
-    tracing::TraceDataCollectorPtr collector) {
-  DCHECK(!collector_.get());
-  collector_ = collector.Pass();
-  if (!tracing_already_started_) {
-    std::string categories_str = categories.To<std::string>();
-    base::trace_event::TraceLog::GetInstance()->SetEnabled(
-        base::trace_event::CategoryFilter(categories_str),
-        base::trace_event::TraceLog::RECORDING_MODE,
-        base::trace_event::TraceOptions(base::trace_event::RECORD_UNTIL_FULL));
-  }
-}
-
-void TraceControllerImpl::StopTracing() {
-  DCHECK(collector_);
-  base::trace_event::TraceLog::GetInstance()->SetDisabled();
-
-  base::trace_event::TraceLog::GetInstance()->Flush(
-      base::Bind(&TraceControllerImpl::SendChunk, base::Unretained(this)));
-}
-
-void TraceControllerImpl::SendChunk(
-    const scoped_refptr<base::RefCountedString>& events_str,
-    bool has_more_events) {
-  DCHECK(collector_);
-  collector_->DataCollected(mojo::String(events_str->data()));
-  if (!has_more_events) {
-    collector_.reset();
-  }
-}
-
-}  // namespace mojo