1 files changed, 4 insertions, 31 deletions
diff --git a/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h b/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h
index 9baccc0659..961cc981b8 100644
--- a/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h
+++ b/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h
@@ -18,7 +18,6 @@
 #ifndef ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
 #define ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
 
-#include "absl/base/internal/raw_logging.h"
 #include "absl/base/internal/scheduling_mode.h"
 #include "absl/base/macros.h"
 
@@ -30,13 +29,6 @@ extern "C" void __google_enable_rescheduling(bool disable_result);
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
-class CondVar;
-class Mutex;
-
-namespace synchronization_internal {
-int MutexDelay(int32_t c, int mode);
-}  // namespace synchronization_internal
-
 namespace base_internal {
 
 class SchedulingHelper;  // To allow use of SchedulingGuard.
@@ -61,8 +53,6 @@ class SchedulingGuard {
  public:
   // Returns true iff the calling thread may be cooperatively rescheduled.
   static bool ReschedulingIsAllowed();
-  SchedulingGuard(const SchedulingGuard&) = delete;
-  SchedulingGuard& operator=(const SchedulingGuard&) = delete;
 
  private:
   // Disable cooperative rescheduling of the calling thread.  It may still
@@ -86,23 +76,12 @@ class SchedulingGuard {
     bool disabled;
   };
 
-  // A scoped helper to enable rescheduling temporarily.
-  // REQUIRES: destructor must run in same thread as constructor.
-  class ScopedEnable {
-   public:
-    ScopedEnable();
-    ~ScopedEnable();
-
-   private:
-    int scheduling_disabled_depth_;
-  };
-
-  // Access to SchedulingGuard is explicitly permitted.
-  friend class absl::CondVar;
-  friend class absl::Mutex;
+  // Access to SchedulingGuard is explicitly white-listed.
   friend class SchedulingHelper;
   friend class SpinLock;
-  friend int absl::synchronization_internal::MutexDelay(int32_t c, int mode);
+
+  SchedulingGuard(const SchedulingGuard&) = delete;
+  SchedulingGuard& operator=(const SchedulingGuard&) = delete;
 };
 
 //------------------------------------------------------------------------------
@@ -121,12 +100,6 @@ inline void SchedulingGuard::EnableRescheduling(bool /* disable_result */) {
   return;
 }
 
-inline SchedulingGuard::ScopedEnable::ScopedEnable()
-    : scheduling_disabled_depth_(0) {}
-inline SchedulingGuard::ScopedEnable::~ScopedEnable() {
-  ABSL_RAW_CHECK(scheduling_disabled_depth_ == 0, "disable unused warning");
-}
-
 }  // namespace base_internal
 ABSL_NAMESPACE_END
 }  // namespace absl