media config: expand is_encrypted to a struct.

chromecast/media/audio/cast_audio_output_stream_unittest.cc

 // Copyright 2015 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 "chromecast/media/audio/cast_audio_output_stream.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
 
@@ skipping 367 matching lines @@
     format_ = format[i];
     ::media::AudioOutputStream* stream = CreateStream();
     ASSERT_TRUE(stream);
     EXPECT_TRUE(OpenStream(stream));
 
     FakeAudioDecoder* audio_decoder = GetAudio();
     ASSERT_TRUE(audio_decoder);
     const AudioConfig& audio_config = audio_decoder->config();
     EXPECT_EQ(kCodecPCM, audio_config.codec);
     EXPECT_EQ(kSampleFormatS16, audio_config.sample_format);
-    EXPECT_FALSE(audio_config.is_encrypted);
+    EXPECT_EQ(audio_config.encryption_scheme.mode,

[ddorwin, 2016/03/01 02:17:41]

Add checks for is_encrypted() and pattern().

[dougsteed, 2016/03/02 18:07:52]

I added inline is_encrypted() check to the chromecast EncryptionScheme struct,
which is being used here. It is essentially equivalent to the check for
kCipherModeNone. And that is the only one that needs to be checked. Pattern is
undefined if !is_encrypted().

+              EncryptionScheme::kCipherModeNone);
 
     CloseStream(stream);
   }
 }
 
 TEST_F(CastAudioOutputStreamTest, ChannelLayout) {
   ::media::ChannelLayout layout[] = {::media::CHANNEL_LAYOUT_MONO,
                                      ::media::CHANNEL_LAYOUT_STEREO};
   for (size_t i = 0; i < arraysize(layout); ++i) {
     channel_layout_ = layout[i];
@@ skipping 248 matching lines @@
 TEST_F(CastAudioOutputStreamTest, CloseWithoutStart) {
   ::media::AudioOutputStream* stream = CreateStream();
   ASSERT_TRUE(stream);
   ASSERT_TRUE(OpenStream(stream));
   CloseStream(stream);
 }
 
 }  // namespace
 }  // namespace media
 }  // namespace chromecast