[style] Replace various "X() != 1" checks with "!X()".

content/child/webcrypto/openssl/rsa_oaep_openssl.cc

 // Copyright 2014 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 <openssl/evp.h>
 
 #include "base/stl_util.h"
 #include "content/child/webcrypto/crypto_data.h"
 #include "content/child/webcrypto/openssl/key_openssl.h"
 #include "content/child/webcrypto/openssl/rsa_key_openssl.h"
@@ skipping 33 matching lines @@
   crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
 
   EVP_PKEY* pkey = AsymKeyOpenSsl::Cast(key)->key();
   const EVP_MD* digest =
       GetDigest(key.algorithm().rsaHashedParams()->hash().id());
   if (!digest)
     return Status::ErrorUnsupported();
 
   crypto::ScopedEVP_PKEY_CTX ctx(EVP_PKEY_CTX_new(pkey, NULL));
 
-  if (1 != init_func(ctx.get()) ||
+  if (!init_func(ctx.get()) ||
       1 != EVP_PKEY_CTX_set_rsa_padding(ctx.get(), RSA_PKCS1_OAEP_PADDING) ||
       1 != EVP_PKEY_CTX_set_rsa_oaep_md(ctx.get(), digest) ||
       1 != EVP_PKEY_CTX_set_rsa_mgf1_md(ctx.get(), digest)) {
     return Status::OperationError();
   }
 
   const blink::WebVector<uint8_t>& label =
       algorithm.rsaOaepParams()->optionalLabel();
 
   if (label.size()) {
     // Make a copy of the label, since the ctx takes ownership of it when
     // calling set0_rsa_oaep_label().
     crypto::ScopedOpenSSLBytes label_copy;
     label_copy.reset(static_cast<uint8_t*>(OPENSSL_malloc(label.size())));
     memcpy(label_copy.get(), label.data(), label.size());
 
     if (1 != EVP_PKEY_CTX_set0_rsa_oaep_label(
                  ctx.get(), label_copy.release(), label.size())) {
       return Status::OperationError();
     }
   }
 
   // Determine the maximum length of the output.
   size_t outlen = 0;
-  if (1 != encrypt_decrypt_func(
-               ctx.get(), NULL, &outlen, data.bytes(), data.byte_length())) {
+  if (!encrypt_decrypt_func(
+          ctx.get(), NULL, &outlen, data.bytes(), data.byte_length())) {
     return Status::OperationError();
   }
   buffer->resize(outlen);
 
   // Do the actual encryption/decryption.
-  if (1 != encrypt_decrypt_func(ctx.get(),
-                                vector_as_array(buffer),
-                                &outlen,
-                                data.bytes(),
-                                data.byte_length())) {
+  if (!encrypt_decrypt_func(ctx.get(),
+                            vector_as_array(buffer),
+                            &outlen,
+                            data.bytes(),
+                            data.byte_length())) {
     return Status::OperationError();
   }
   buffer->resize(outlen);
 
   return Status::Success();
 }
 
 class RsaOaepImplementation : public RsaHashedAlgorithm {
  public:
   RsaOaepImplementation()
@@ skipping 43 matching lines @@
 
 }  // namespace
 
 AlgorithmImplementation* CreatePlatformRsaOaepImplementation() {
   return new RsaOaepImplementation;
 }
 
 }  // namespace webcrypto
 
 }  // namespace content