crypto: Remove forbidden using namespace directive.

Instead just wrap the unittests files into the crypto namespace.

TEST=crypto_unittests
R=rsleevi@chromium.org


Review URL: https://chromiumcodereview.appspot.com/11368035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@165816 0039d316-1c4b-4281-b951-d872f2087c98

crypto/p224_spake_unittest.cc

@@ -7,7 +7,9 @@
 #include "base/logging.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using namespace crypto;
+namespace crypto {
+
+namespace {
 
 bool RunExchange(P224EncryptedKeyExchange* client,
                  P224EncryptedKeyExchange* server) {
@@ -42,7 +44,9 @@ bool RunExchange(P224EncryptedKeyExchange* client,
   }
 }
 
-static const char kPassword[] = "foo";
+const char kPassword[] = "foo";
+
+}  // namespace
 
 TEST(MutualAuth, CorrectAuth) {
   P224EncryptedKeyExchange client(
@@ -122,3 +126,5 @@ TEST(MutualAuth, Fuzz) {
     }
   }
 }
+
+}  // namespace crypto

crypto/p224_unittest.cc

@@ -9,7 +9,8 @@
 
 #include "testing/gtest/include/gtest/gtest.h"
 
-using namespace crypto;
+namespace crypto {
+
 using p224::Point;
 
 // kBasePointExternal is the P224 base point in external representation.
@@ -819,3 +820,5 @@ TEST(P224, Infinity) {
   // We shouldn't allow ∞ to be imported.
   EXPECT_FALSE(a.SetFromString(std::string(zeros, sizeof(zeros))));
 }
+
+}  // namespace crypto