Move TaskTimeObserver to //base/task/sequence_manager.

Bug: 783309
Change-Id: I3d179e286bd82b3fb6f4c63e0c3eb9a64aaa5f68
Reviewed-on: https://chromium-review.googlesource.com/1097410
Commit-Queue: Greg Kraynov <kraynov@chromium.org>
Reviewed-by: Alexander Timin <altimin@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567407}

base/BUILD.gn

@@ -818,6 +818,7 @@ jumbo_component("base") {
     "task/sequence_manager/lazy_now.h",
     "task/sequence_manager/sequenced_task_source.h",
     "task/sequence_manager/task_queue.h",
+    "task/sequence_manager/task_time_observer.h",
     "task/sequence_manager/thread_controller.h",
     "task_runner.cc",
     "task_runner.h",

third_party/blink/renderer/platform/scheduler/base/task_time_observer.h → base/task/sequence_manager/task_time_observer.h

-// Copyright 2016 The Chromium Authors. All rights reserved.
+// Copyright 2018 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_TASK_TIME_OBSERVER_H_
-#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_TASK_TIME_OBSERVER_H_
+#ifndef BASE_TASK_SEQUENCE_MANAGER_TASK_TIME_OBSERVER_H_
+#define BASE_TASK_SEQUENCE_MANAGER_TASK_TIME_OBSERVER_H_
 
 #include "base/time/time.h"
-#include "third_party/blink/renderer/platform/platform_export.h"
 
 namespace base {
 namespace sequence_manager {
 
-// TaskTimeObserver provides an API for observing completion of renderer tasks.
-class PLATFORM_EXPORT TaskTimeObserver {
+// TaskTimeObserver provides an API for observing completion of tasks.
+class TaskTimeObserver {
  public:
   TaskTimeObserver() = default;
   virtual ~TaskTimeObserver() = default;
 
-  // Callback to be called when task is about to start.
-  // |start_time| - time in seconds when task started to run,
-  virtual void WillProcessTask(base::TimeTicks start_time) = 0;
+  // To be called when task is about to start.
+  virtual void WillProcessTask(TimeTicks start_time) = 0;
 
-  // Callback to be called when task is completed.
-  // |start_time| - time in seconds when task started to run,
-  // |end_time| - time in seconds when task was completed.
-  virtual void DidProcessTask(base::TimeTicks start_time,
-                              base::TimeTicks end_time) = 0;
+  // To be called when task is completed.
+  virtual void DidProcessTask(TimeTicks start_time, TimeTicks end_time) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TaskTimeObserver);
@@ -34,4 +29,4 @@ class PLATFORM_EXPORT TaskTimeObserver {
 }  // namespace sequence_manager
 }  // namespace base
 
-#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_TASK_TIME_OBSERVER_H_
+#endif  // BASE_TASK_SEQUENCE_MANAGER_TASK_TIME_OBSERVER_H_

third_party/blink/renderer/core/DEPS

@@ -2,6 +2,7 @@ include_rules = [
     "+base/atomic_sequence_num.h",
     "+base/memory/scoped_refptr.h",
     "+base/synchronization/waitable_event.h",
+    "+base/task/sequence_manager/task_time_observer.h",
     "+base/unguessable_token.h",
     "+build/mac",
     "+build/win",

third_party/blink/renderer/core/frame/performance_monitor.h

@@ -6,6 +6,7 @@
 #define THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_PERFORMANCE_MONITOR_H_
 
 #include "base/macros.h"
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "third_party/blink/public/platform/web_thread.h"
 #include "third_party/blink/renderer/core/core_export.h"
 #include "third_party/blink/renderer/core/dom/document.h"
@@ -13,7 +14,6 @@
 #include "third_party/blink/renderer/core/timing/sub_task_attribution.h"
 #include "third_party/blink/renderer/platform/heap/handle.h"
 #include "third_party/blink/renderer/platform/loader/fetch/resource.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
 #include "v8/include/v8.h"
 

third_party/blink/renderer/core/inspector/inspector_performance_agent.h

@@ -8,10 +8,10 @@
 #include <memory>
 
 #include "base/macros.h"
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "third_party/blink/renderer/core/core_export.h"
 #include "third_party/blink/renderer/core/inspector/inspector_base_agent.h"
 #include "third_party/blink/renderer/core/inspector/protocol/Performance.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/wtf/time.h"
 
 namespace blink {

third_party/blink/renderer/core/loader/idleness_detector.h

@@ -6,9 +6,9 @@
 #define THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_IDLENESS_DETECTOR_H_
 
 #include "base/macros.h"
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "third_party/blink/renderer/core/core_export.h"
 #include "third_party/blink/renderer/platform/heap/handle.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/timer.h"
 
 namespace blink {

third_party/blink/renderer/platform/DEPS

@@ -36,6 +36,7 @@ include_rules = [
     "+base/synchronization/waitable_event.h",
     "+base/sys_info.h",
     "+base/android/sys_utils.h",
+    "+base/task/sequence_manager/task_time_observer.h",
     "+base/test",
     "+base/test/fuzzed_data_provider.h",
     "+base/threading/thread_task_runner_handle.h",

third_party/blink/renderer/platform/long_task_detector.h

@@ -5,10 +5,10 @@
 #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_LONG_TASK_DETECTOR_H_
 #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_LONG_TASK_DETECTOR_H_
 
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "third_party/blink/public/platform/web_thread.h"
 #include "third_party/blink/renderer/platform/heap/handle.h"
 #include "third_party/blink/renderer/platform/platform_export.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/wtf/noncopyable.h"
 #include "third_party/blink/renderer/platform/wtf/time.h"
 

third_party/blink/renderer/platform/scheduler/BUILD.gn

@@ -22,7 +22,6 @@ blink_platform_sources("scheduler") {
     "base/task_queue_selector.cc",
     "base/task_queue_selector.h",
     "base/task_queue_selector_logic.h",
-    "base/task_time_observer.h",
     "base/thread_controller_impl.cc",
     "base/thread_controller_impl.h",
     "base/time_domain.cc",

third_party/blink/renderer/platform/scheduler/base/task_queue_manager.h

@@ -10,10 +10,10 @@
 
 #include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "third_party/blink/renderer/platform/platform_export.h"
 #include "third_party/blink/renderer/platform/scheduler/base/real_time_domain.h"
 #include "third_party/blink/renderer/platform/scheduler/base/task_queue_impl_forward.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/scheduler/base/time_domain.h"
 
 namespace base {

third_party/blink/renderer/platform/scheduler/base/task_queue_manager_impl.cc

@@ -12,13 +12,13 @@
 #include "base/compiler_specific.h"
 #include "base/debug/crash_logging.h"
 #include "base/rand_util.h"
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "base/time/default_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "base/trace_event/trace_event.h"
 #include "third_party/blink/renderer/platform/scheduler/base/real_time_domain.h"
 #include "third_party/blink/renderer/platform/scheduler/base/task_queue_impl_forward.h"
 #include "third_party/blink/renderer/platform/scheduler/base/task_queue_selector.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/scheduler/base/thread_controller_impl.h"
 #include "third_party/blink/renderer/platform/scheduler/base/work_queue.h"
 #include "third_party/blink/renderer/platform/scheduler/base/work_queue_sets.h"

third_party/blink/renderer/platform/scheduler/base/test/test_task_time_observer.h

@@ -5,8 +5,8 @@
 #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_TEST_TEST_TASK_TIME_OBSERVER_H_
 #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_TEST_TEST_TASK_TIME_OBSERVER_H_
 
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "base/time/time.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 
 namespace base {
 namespace sequence_manager {

third_party/blink/renderer/platform/scheduler/main_thread/main_thread_scheduler_impl.h

@@ -19,12 +19,12 @@
 #include "base/metrics/single_sample_metrics.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "base/trace_event/trace_log.h"
 #include "build/build_config.h"
 #include "third_party/blink/public/platform/scheduler/web_thread_scheduler.h"
 #include "third_party/blink/renderer/platform/platform_export.h"
 #include "third_party/blink/renderer/platform/scheduler/base/task_queue_forward.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/scheduler/child/pollable_thread_safe_flag.h"
 #include "third_party/blink/renderer/platform/scheduler/child/task_queue_with_task_type.h"
 #include "third_party/blink/renderer/platform/scheduler/common/idle_canceled_delayed_task_sweeper.h"

third_party/blink/renderer/platform/scheduler/worker/worker_thread_scheduler.h

@@ -8,8 +8,8 @@
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
+#include "base/task/sequence_manager/task_time_observer.h"
 #include "third_party/blink/public/platform/web_thread_type.h"
-#include "third_party/blink/renderer/platform/scheduler/base/task_time_observer.h"
 #include "third_party/blink/renderer/platform/scheduler/common/idle_canceled_delayed_task_sweeper.h"
 #include "third_party/blink/renderer/platform/scheduler/common/idle_helper.h"
 #include "third_party/blink/renderer/platform/scheduler/public/frame_scheduler.h"