Remove CryptAcquireContextLocked.

crypto/capi_util.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "crypto/capi_util.h"
 
 #include <stddef.h>
-
-#include "base/macros.h"
-#include "base/memory/singleton.h"
-#include "base/synchronization/lock.h"
-
-namespace {
-
-class CAPIUtilSingleton {
- public:
-  static CAPIUtilSingleton* GetInstance() {
-    return base::Singleton<CAPIUtilSingleton>::get();
-  }
-
-  // Returns a lock to guard calls to CryptAcquireContext with
-  // CRYPT_DELETEKEYSET or CRYPT_NEWKEYSET.
-  base::Lock& acquire_context_lock() {
-    return acquire_context_lock_;
-  }
-
- private:
-  friend class base::Singleton<CAPIUtilSingleton>;
-  friend struct base::DefaultSingletonTraits<CAPIUtilSingleton>;
-
-  CAPIUtilSingleton() {}
-
-  base::Lock acquire_context_lock_;
-
-  DISALLOW_COPY_AND_ASSIGN(CAPIUtilSingleton);
-};
-
-}  // namespace
+#include <stdlib.h>
 
 namespace crypto {
 
-BOOL CryptAcquireContextLocked(HCRYPTPROV* prov,
-                               LPCWSTR container,
-                               LPCWSTR provider,
-                               DWORD prov_type,
-                               DWORD flags) {
-  base::AutoLock lock(CAPIUtilSingleton::GetInstance()->acquire_context_lock());
-  return CryptAcquireContext(prov, container, provider, prov_type, flags);
-}
-
 void* WINAPI CryptAlloc(size_t size) {
   return malloc(size);
 }
 
 void WINAPI CryptFree(void* p) {
   free(p);
 }
 
 }  // namespace crypto