Switch to standard integer types in base/.

base/task/cancelable_task_tracker.h

Index: base/task/cancelable_task_tracker.h
diff --git a/base/task/cancelable_task_tracker.h b/base/task/cancelable_task_tracker.h
index b8a8b70e333922b41d5e7019070f09e18a6a12e4..86b5a458450fa200c0e54bf9f13ee55edfd649a4 100644
--- a/base/task/cancelable_task_tracker.h
+++ b/base/task/cancelable_task_tracker.h
@@ -36,10 +36,12 @@
 #ifndef BASE_TASK_CANCELABLE_TASK_TRACKER_H_
 #define BASE_TASK_CANCELABLE_TASK_TRACKER_H_
 
+#include <stdint.h>
+
 #include "base/base_export.h"
-#include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/containers/hash_tables.h"
+#include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/task_runner_util.h"
 #include "base/threading/thread_checker.h"
@@ -56,7 +58,7 @@ class TaskRunner;
 class BASE_EXPORT CancelableTaskTracker {
  public:
   // All values except kBadTaskId are valid.
-  typedef int64 TaskId;
+  typedef int64_t TaskId;
   static const TaskId kBadTaskId;
 
   typedef base::Callback<bool()> IsCanceledCallback;