Use safer IPC serializations in media_param_traits.cc

media/audio/cras/cras_input_unittest.cc

 // Copyright (c) 2012 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 <string>
 
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "base/time/time.h"
 #include "media/audio/cras/audio_manager_cras.h"
@@ skipping 134 matching lines @@
                                  kTestSampleRate,
                                  kTestBitsPerSample - 1,
                                  kTestFramesPerPacket);
   CrasInputStream* test_stream = new CrasInputStream(
       bad_bps_params, mock_manager_.get(), AudioManagerBase::kDefaultDeviceId);
   EXPECT_FALSE(test_stream->Open());
   test_stream->Close();
 }
 
 TEST_F(CrasInputStreamTest, BadFormat) {
-  AudioParameters bad_format_params(AudioParameters::AUDIO_LAST_FORMAT,
-                                    kTestChannelLayout,
-                                    kTestSampleRate,
-                                    kTestBitsPerSample,
-                                    kTestFramesPerPacket);
+  AudioParameters bad_format_params(static_cast<AudioParameters::Format>(
+                                        AudioParameters::AUDIO_FORMAT_LAST + 1),
+                                    kTestChannelLayout, kTestSampleRate,
+                                    kTestBitsPerSample, kTestFramesPerPacket);
   CrasInputStream* test_stream = new CrasInputStream(
       bad_format_params, mock_manager_.get(),
       AudioManagerBase::kDefaultDeviceId);
   EXPECT_FALSE(test_stream->Open());
   test_stream->Close();
 }
 
 TEST_F(CrasInputStreamTest, BadSampleRate) {
   AudioParameters bad_rate_params(kTestFormat,
                                   kTestChannelLayout,
@@ skipping 51 matching lines @@
 TEST_F(CrasInputStreamTest, CaptureLoopback) {
   CrasInputStream* test_stream = CreateStream(
       CHANNEL_LAYOUT_STEREO,
       kTestFramesPerPacket,
       AudioManagerBase::kLoopbackInputDeviceId);
   EXPECT_TRUE(test_stream->Open());
   test_stream->Close();
 }
 
 }  // namespace media