Don’t use using directives (“using namespace”) in tests

util/numeric/in_range_cast_test.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #include "util/numeric/in_range_cast.h"
 
 #include <stdint.h>
 
 #include <limits>
 
 #include "gtest/gtest.h"
 
+namespace crashpad {
+namespace test {
 namespace {
 
-using namespace crashpad;
-
 const int32_t kInt32Min = std::numeric_limits<int32_t>::min();
 const int64_t kInt64Min = std::numeric_limits<int64_t>::min();
 
 TEST(InRangeCast, Uint32) {
   EXPECT_EQ(0u, InRangeCast<uint32_t>(0, 1));
   EXPECT_EQ(1u, InRangeCast<uint32_t>(1, 1));
   EXPECT_EQ(2u, InRangeCast<uint32_t>(2, 1));
   EXPECT_EQ(0u, InRangeCast<uint32_t>(-1, 0));
   EXPECT_EQ(1u, InRangeCast<uint32_t>(-1, 1));
   EXPECT_EQ(2u, InRangeCast<uint32_t>(-1, 2));
@@ skipping 71 matching lines @@
   EXPECT_EQ(0, InRangeCast<int64_t>(UINT64_C(0xffffffffffffffff), 0));
   EXPECT_EQ(-1, InRangeCast<int64_t>(UINT64_C(0xffffffffffffffff), -1));
   EXPECT_EQ(kInt64Min,
             InRangeCast<int64_t>(UINT64_C(0xffffffffffffffff), kInt64Min));
   EXPECT_EQ(INT64_C(0x7fffffffffffffff),
             InRangeCast<int64_t>(UINT64_C(0xffffffffffffffff),
                                  INT64_C(0x7fffffffffffffff)));
 }
 
 }  // namespace
+}  // namespace test
+}  // namespace crashpad