Fix openssl portability issue

- in STL vector<> has no data() member.

BUG=None
TEST=Builds. base_unittest --gtest_filter=*Sym*

Review URL: http://codereview.chromium.org/5705006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69128 0039d316-1c4b-4281-b951-d872f2087c98

base/crypto/signature_creator_openssl.cc

@@ -9,6 +9,7 @@
 #include "base/logging.h"
 #include "base/openssl_util.h"
 #include "base/scoped_ptr.h"
+#include "base/stl_util-inl.h"
 
 namespace base {
 
@@ -41,7 +42,7 @@ bool SignatureCreator::Final(std::vector<uint8>* signature) {
   signature->resize(EVP_PKEY_size(key));
 
   unsigned int len = 0;
-  int rv = EVP_SignFinal(sign_context_, signature->data(), &len, key);
+  int rv = EVP_SignFinal(sign_context_, vector_as_array(signature), &len, key);
   if (!rv) {
     signature->clear();
     return false;

base/crypto/signature_verifier_openssl.cc

@@ -12,6 +12,7 @@
 #include "base/logging.h"
 #include "base/openssl_util.h"
 #include "base/scoped_ptr.h"
+#include "base/stl_util-inl.h"
 
 namespace base {
 
@@ -77,7 +78,7 @@ bool SignatureVerifier::VerifyFinal() {
   DCHECK(verify_context_);
   OpenSSLErrStackTracer err_tracer(FROM_HERE);
   int rv = EVP_VerifyFinal(verify_context_->ctx.get(),
-                           signature_.data(), signature_.size(),
+                           vector_as_array(&signature_), signature_.size(),
                            verify_context_->public_key.get());
   DCHECK_GE(rv, 0);
   Reset();