Refactor CancelableTaskManager to use std::map.

src/cancelable-task.h

Index: src/cancelable-task.h
diff --git a/src/cancelable-task.h b/src/cancelable-task.h
index a8387fcd950008e0b416e4cb09c6477a14334147..6c1b631d8d7e1b6dbbaa8cede2bd0257004a5362 100644
--- a/src/cancelable-task.h
+++ b/src/cancelable-task.h
@@ -5,11 +5,12 @@
 #ifndef V8_CANCELABLE_TASK_H_
 #define V8_CANCELABLE_TASK_H_
 
+#include <map>
+
 #include "include/v8-platform.h"
 #include "src/atomic-utils.h"
 #include "src/base/macros.h"
 #include "src/base/platform/condition-variable.h"
-#include "src/hashmap.h"
 
 namespace v8 {
 namespace internal {
@@ -51,7 +52,7 @@ class CancelableTaskManager {
   uint32_t task_id_counter_;
 
   // A set of cancelable tasks that are currently registered.
-  HashMap cancelable_tasks_;
+  std::map<uint32_t, Cancelable*> cancelable_tasks_;

[Nico, 2016/05/11 13:04:24]

(if you don't need to ordering -- and given this was a HashMap before you might
not need it -- you could use std::unordered_map as well)

 
   // Mutex and condition variable enabling concurrent register and removing, as
   // well as waiting for background tasks on {CancelAndWait}.