Remove unused CriticalSection::IsLocked()

webrtc/base/criticalsection.cc

 /*
  *  Copyright 2015 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 162 matching lines @@
          reinterpret_cast<HANDLE>(static_cast<size_t>(GetCurrentThreadId()));
 #else
 #if CS_DEBUG_CHECKS
   return IsThreadRefEqual(thread_, CurrentThreadRef());
 #else
   return true;
 #endif  // CS_DEBUG_CHECKS
 #endif
 }
 
-bool CriticalSection::IsLocked() const {
-#if defined(WEBRTC_WIN)
-  return crit_.LockCount != -1;
-#else
-#if CS_DEBUG_CHECKS
-  return thread_ != 0;
-#else
-  return true;
-#endif
-#endif
-}
-
 CritScope::CritScope(const CriticalSection* cs) : cs_(cs) { cs_->Enter(); }
 CritScope::~CritScope() { cs_->Leave(); }
 
 TryCritScope::TryCritScope(const CriticalSection* cs)
     : cs_(cs), locked_(cs->TryEnter()) {
   CS_DEBUG_CODE(lock_was_called_ = false);
 }
 
 TryCritScope::~TryCritScope() {
   CS_DEBUG_CODE(RTC_DCHECK(lock_was_called_));
@@ skipping 34 matching lines @@
 GlobalLockScope::GlobalLockScope(GlobalLockPod* lock)
     : lock_(lock) {
   lock_->Lock();
 }
 
 GlobalLockScope::~GlobalLockScope() {
   lock_->Unlock();
 }
 
 }  // namespace rtc