Introduce TaskRunner::RunsTasksInCurrentSequence()

content/browser/dom_storage/dom_storage_task_runner.cc

Index: content/browser/dom_storage/dom_storage_task_runner.cc
diff --git a/content/browser/dom_storage/dom_storage_task_runner.cc b/content/browser/dom_storage/dom_storage_task_runner.cc
index 738be983203a2146d0b873105597e8a10a15e38a..edfdc722b26075c091b9fb9a106d8a1f745a7327 100644
--- a/content/browser/dom_storage/dom_storage_task_runner.cc
+++ b/content/browser/dom_storage/dom_storage_task_runner.cc
@@ -24,9 +24,9 @@ DOMStorageWorkerPoolTaskRunner::DOMStorageWorkerPoolTaskRunner(
 
 DOMStorageWorkerPoolTaskRunner::~DOMStorageWorkerPoolTaskRunner() = default;
 
-bool DOMStorageWorkerPoolTaskRunner::RunsTasksOnCurrentThread() const {
-  // It is valid for an implementation to always return true.
-  return true;
+bool DOMStorageWorkerPoolTaskRunner::RunsTasksInCurrentSequence() const {
+  return primary_sequence_->RunsTasksOnCurrentThread() ||
+         commit_sequence_->RunsTasksOnCurrentThread();
 }
 
 bool DOMStorageWorkerPoolTaskRunner::PostDelayedTask(
@@ -68,8 +68,8 @@ MockDOMStorageTaskRunner::MockDOMStorageTaskRunner(
 
 MockDOMStorageTaskRunner::~MockDOMStorageTaskRunner() = default;
 
-bool MockDOMStorageTaskRunner::RunsTasksOnCurrentThread() const {
-  return task_runner_->RunsTasksOnCurrentThread();
+bool MockDOMStorageTaskRunner::RunsTasksInCurrentSequence() const {
+  return task_runner_->RunsTasksInCurrentSequence();
 }
 
 bool MockDOMStorageTaskRunner::PostDelayedTask(