WebRtcVoiceEngineTest: Changed a static_cast to a checked_cast.

webrtc/media/engine/webrtcvoiceengine_unittest.cc

 /*
  *  Copyright (c) 2008 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include <memory>
 
 #include "webrtc/api/audio_codecs/builtin_audio_decoder_factory.h"
 #include "webrtc/base/arraysize.h"
 #include "webrtc/base/byteorder.h"
 #include "webrtc/base/gunit.h"
+#include "webrtc/base/safe_conversions.h"
 #include "webrtc/call/call.h"
 #include "webrtc/logging/rtc_event_log/rtc_event_log.h"
 #include "webrtc/media/base/fakemediaengine.h"
 #include "webrtc/media/base/fakenetworkinterface.h"
 #include "webrtc/media/base/fakertp.h"
 #include "webrtc/media/base/mediaconstants.h"
 #include "webrtc/media/engine/fakewebrtccall.h"
 #include "webrtc/media/engine/fakewebrtcvoiceengine.h"
 #include "webrtc/media/engine/webrtcvoiceengine.h"
 #include "webrtc/modules/audio_coding/codecs/mock/mock_audio_decoder_factory.h"
@@ skipping 3690 matching lines @@
 
   // Ensure the general codecs are generated first and in order.
   for (size_t i = 0; i != specs.size(); ++i) {
     EXPECT_EQ(specs[i].format.name, get_codec(i).name);
     EXPECT_EQ(specs[i].format.clockrate_hz, get_codec(i).clockrate);
     EXPECT_EQ(specs[i].format.num_channels, get_codec(i).channels);
     EXPECT_EQ(specs[i].format.parameters, get_codec(i).params);
   }
 
   // Find the index of a codec, or -1 if not found, so that we can easily check
-  // supplementary codecs are orderd after the general codecs.
+  // supplementary codecs are ordered after the general codecs.
   auto find_codec =
       [&codecs](const webrtc::SdpAudioFormat& format) -> int {
         for (size_t i = 0; i != codecs.size(); ++i) {
           const cricket::AudioCodec& codec = codecs[i];
           if (STR_CASE_CMP(codec.name.c_str(), format.name.c_str()) == 0 &&
               codec.clockrate == format.clockrate_hz &&
               codec.channels == format.num_channels) {
-            return static_cast<int>(i);
+            return rtc::checked_cast<int>(i);
           }
         }
         return -1;
       };
 
   // Ensure all supplementary codecs are generated last. Their internal ordering
   // is not important.
   // Without this cast, the comparison turned unsigned and, thus, failed for -1.
   const int num_specs = static_cast<int>(specs.size());
   EXPECT_GE(find_codec({"cn", 8000, 1}), num_specs);
   EXPECT_GE(find_codec({"cn", 16000, 1}), num_specs);
   EXPECT_EQ(find_codec({"cn", 32000, 1}), -1);
   EXPECT_GE(find_codec({"telephone-event", 8000, 1}), num_specs);
   EXPECT_GE(find_codec({"telephone-event", 16000, 1}), num_specs);
   EXPECT_GE(find_codec({"telephone-event", 32000, 1}), num_specs);
   EXPECT_GE(find_codec({"telephone-event", 48000, 1}), num_specs);
 }