media config: expand is_encrypted to a struct.

media/filters/decrypting_demuxer_stream_unittest.cc

Index: media/filters/decrypting_demuxer_stream_unittest.cc
diff --git a/media/filters/decrypting_demuxer_stream_unittest.cc b/media/filters/decrypting_demuxer_stream_unittest.cc
index 45cdfe118ff7230faf941464e0e5b4e89f7122c0..f08733b22ba1e4394fb83356fc5006b3e2cf48cd 100644
--- a/media/filters/decrypting_demuxer_stream_unittest.cc
+++ b/media/filters/decrypting_demuxer_stream_unittest.cc
@@ -131,7 +131,7 @@ class DecryptingDemuxerStreamTest : public testing::Test {
 
     AudioDecoderConfig input_config(kCodecVorbis, kSampleFormatPlanarF32,
                                     CHANNEL_LAYOUT_STEREO, 44100,
-                                    EmptyExtraData(), true);
+                                    EmptyExtraData(), AesCtrEncryptionScheme());
     InitializeAudioAndExpectStatus(input_config, PIPELINE_OK);
 
     const AudioDecoderConfig& output_config =
@@ -305,7 +305,7 @@ TEST_F(DecryptingDemuxerStreamTest, Initialize_CdmWithoutDecryptor) {
   SetCdmType(CDM_WITHOUT_DECRYPTOR);
   AudioDecoderConfig input_config(kCodecVorbis, kSampleFormatPlanarF32,
                                   CHANNEL_LAYOUT_STEREO, 44100,
-                                  EmptyExtraData(), true);
+                                  EmptyExtraData(), AesCtrEncryptionScheme());
   InitializeAudioAndExpectStatus(input_config, DECODER_ERROR_NOT_SUPPORTED);
 }
 
@@ -361,7 +361,7 @@ TEST_F(DecryptingDemuxerStreamTest, KeyAdded_DuringWaitingForKey) {
 
 // Test the case where the a key is added when the decryptor is in
 // kPendingDecrypt state.
-TEST_F(DecryptingDemuxerStreamTest, KeyAdded_DruingPendingDecrypt) {
+TEST_F(DecryptingDemuxerStreamTest, KeyAdded_DuringPendingDecrypt) {
   Initialize();
   EnterPendingDecryptState();
 
@@ -457,7 +457,7 @@ TEST_F(DecryptingDemuxerStreamTest, DemuxerRead_ConfigChanged) {
 
   AudioDecoderConfig new_config(kCodecVorbis, kSampleFormatPlanarF32,
                                 CHANNEL_LAYOUT_STEREO, 88200, EmptyExtraData(),
-                                true);
+                                AesCtrEncryptionScheme());
   input_audio_stream_->set_audio_decoder_config(new_config);
 
   EXPECT_CALL(*input_audio_stream_, Read(_))