// Copyright 2014 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. #ifndef ANDROID_WEBVIEW_COMMON_DEVTOOLS_INSTRUMENTATION_H_ #define ANDROID_WEBVIEW_COMMON_DEVTOOLS_INSTRUMENTATION_H_ #include "base/trace_event/trace_event.h" namespace android_webview { namespace devtools_instrumentation { namespace internal { constexpr const char* Category() { // Declared as a constexpr function to have an external linkage and to be // known at compile-time. return "Java,devtools,disabled-by-default-devtools.timeline"; } const char kEmbedderCallback[] = "EmbedderCallback"; const char kCallbackNameArgument[] = "callbackName"; } // namespace internal class ScopedEmbedderCallbackTask { public: explicit ScopedEmbedderCallbackTask(const char* callback_name) { TRACE_EVENT_BEGIN1(internal::Category(), internal::kEmbedderCallback, internal::kCallbackNameArgument, callback_name); } ScopedEmbedderCallbackTask(const ScopedEmbedderCallbackTask&) = delete; ScopedEmbedderCallbackTask& operator=(const ScopedEmbedderCallbackTask&) = delete; ~ScopedEmbedderCallbackTask() { TRACE_EVENT_END0(internal::Category(), internal::kEmbedderCallback); } }; } // namespace devtools_instrumentation } // namespace android_webview #endif // ANDROID_WEBVIEW_COMMON_DEVTOOLS_INSTRUMENTATION_H_