Suppress the clang warning "-Wdeprecated-declarations" for CSSM API calls.

net/ssl/ssl_platform_key_mac.cc

 // Copyright 2015 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 "net/ssl/ssl_platform_key.h"
 
 #include <openssl/ecdsa.h>
 #include <openssl/obj.h>
 #include <openssl/rsa.h>
 
@@ skipping 16 matching lines @@
 #include "crypto/openssl_util.h"
 #include "crypto/scoped_openssl_types.h"
 #include "net/base/net_errors.h"
 #include "net/cert/x509_certificate.h"
 #include "net/ssl/ssl_platform_key_task_runner.h"
 #include "net/ssl/ssl_private_key.h"
 #include "net/ssl/threaded_ssl_private_key.h"
 
 namespace net {
 
+// CSSM functions are deprecated as of OSX 10.7, but have no replacement.
+// https://bugs.chromium.org/p/chromium/issues/detail?id=590914#c1
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
 namespace {
 
 class ScopedCSSM_CC_HANDLE {
  public:
   ScopedCSSM_CC_HANDLE() : handle_(0) {}
   explicit ScopedCSSM_CC_HANDLE(CSSM_CC_HANDLE handle) : handle_(handle) {}
 
   ~ScopedCSSM_CC_HANDLE() { reset(); }
 
   CSSM_CC_HANDLE get() const { return handle_; }
@@ skipping 187 matching lines @@
   if (cssm_key->KeyHeader.AlgorithmId != CSSM_ALGID_RSA &&
       cssm_key->KeyHeader.AlgorithmId != CSSM_ALGID_ECDSA) {
     LOG(ERROR) << "Unknown key type: " << cssm_key->KeyHeader.AlgorithmId;
     return nullptr;
   }
   return make_scoped_refptr(new ThreadedSSLPrivateKey(
       make_scoped_ptr(new SSLPlatformKeyMac(private_key.get(), cssm_key)),
       GetSSLPlatformKeyTaskRunner()));
 }
 
+#pragma clang diagnostic pop  // "-Wdeprecated-declarations"
+
 }  // namespace net