components/scheduler/renderer/renderer_scheduler.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/scheduler/renderer/renderer_scheduler.h"
   6
   7 #include "base/message_loop/message_loop.h"
   8 #include "base/trace_event/trace_event.h"
   9 #include "base/trace_event/trace_event_impl.h"
  10 #include "components/scheduler/child/scheduler_task_runner_delegate_impl.h"
  11 #include "components/scheduler/renderer/renderer_scheduler_impl.h"
  12
  13 namespace scheduler {
  14
  15 RendererScheduler::RendererScheduler() {
  16 }
  17
  18 RendererScheduler::~RendererScheduler() {
  19 }
  20
  21 // static
  22 scoped_ptr<RendererScheduler> RendererScheduler::Create() {
  23   // Ensure worker.scheduler, worker.scheduler.debug and
  24   // renderer.scheduler.debug appear as an option in about://tracing
  25   base::trace_event::TraceLog::GetCategoryGroupEnabled(
  26       TRACE_DISABLED_BY_DEFAULT("worker.scheduler"));
  27   base::trace_event::TraceLog::GetCategoryGroupEnabled(
  28       TRACE_DISABLED_BY_DEFAULT("worker.scheduler.debug"));
  29   base::trace_event::TraceLog::GetCategoryGroupEnabled(
  30       TRACE_DISABLED_BY_DEFAULT("renderer.scheduler.debug"));
  31
  32   base::MessageLoop* message_loop = base::MessageLoop::current();
  33   return make_scoped_ptr(new RendererSchedulerImpl(
  34       SchedulerTaskRunnerDelegateImpl::Create(message_loop)));
  35 }
  36
  37 // static
  38 const char* RendererScheduler::UseCaseToString(UseCase use_case) {
  39   switch (use_case) {
  40     case UseCase::NONE:
  41       return "none";
  42     case UseCase::COMPOSITOR_GESTURE:
  43       return "compositor_gesture";
  44     case UseCase::MAIN_THREAD_GESTURE:
  45       return "main_thread_gesture";
  46     case UseCase::TOUCHSTART:
  47       return "touchstart";
  48     case UseCase::LOADING:
  49       return "loading";
  50     default:
  51       NOTREACHED();
  52       return nullptr;
  53   }
  54 }
  55
  56 // static
  57 const char* RendererScheduler::InputEventStateToString(
  58     InputEventState input_event_state) {
  59   switch (input_event_state) {
  60     case InputEventState::EVENT_CONSUMED_BY_COMPOSITOR:
  61       return "event_consumed_by_compositor";
  62     case InputEventState::EVENT_FORWARDED_TO_MAIN_THREAD:
  63       return "event_forwarded_to_main_thread";
  64     default:
  65       NOTREACHED();
  66       return nullptr;
  67   }
  68 }
  69
  70 }  // namespace scheduler