Remove NSS SecureRandomGenerator.

webrtc/base/helpers.cc

 /*
  *  Copyright 2004 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 38 matching lines @@
 class SecureRandomGenerator : public RandomGenerator {
  public:
   SecureRandomGenerator() {}
   ~SecureRandomGenerator() override {}
   bool Init(const void* seed, size_t len) override { return true; }
   bool Generate(void* buf, size_t len) override {
     return (RAND_bytes(reinterpret_cast<unsigned char*>(buf), len) > 0);
   }
 };
 
-#elif defined(SSL_USE_NSS_RNG)
-// The NSS RNG.
-class SecureRandomGenerator : public RandomGenerator {
- public:
-  SecureRandomGenerator() {}
-  ~SecureRandomGenerator() override {}
-  bool Init(const void* seed, size_t len) override { return true; }
-  bool Generate(void* buf, size_t len) override {
-    return (PK11_GenerateRandom(reinterpret_cast<unsigned char*>(buf),
-                                static_cast<int>(len)) == SECSuccess);
-  }
-};
-
 #else
 #if defined(WEBRTC_WIN)
 class SecureRandomGenerator : public RandomGenerator {
  public:
   SecureRandomGenerator() : advapi32_(NULL), rtl_gen_random_(NULL) {}
   ~SecureRandomGenerator() {
     FreeLibrary(advapi32_);
   }
 
   virtual bool Init(const void* seed, size_t seed_len) {
@@ skipping 217 matching lines @@
   } while (id == 0);
   return id;
 }
 
 double CreateRandomDouble() {
   return CreateRandomId() / (std::numeric_limits<uint32_t>::max() +
                              std::numeric_limits<double>::epsilon());
 }
 
 }  // namespace rtc