media config: expand is_encrypted to a struct.

media/filters/audio_decoder_selector_unittest.cc

Index: media/filters/audio_decoder_selector_unittest.cc
diff --git a/media/filters/audio_decoder_selector_unittest.cc b/media/filters/audio_decoder_selector_unittest.cc
index 2f5adaaeaafcd56e3b8a845b378eec74c45d9bbb..34b1a16a158cc87fa03af33220aed3f318f6ef5d 100644
--- a/media/filters/audio_decoder_selector_unittest.cc
+++ b/media/filters/audio_decoder_selector_unittest.cc
@@ -6,6 +6,7 @@
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
+#include "media/base/encryption_scheme.h"
 #include "media/base/gmock_callback_support.h"
 #include "media/base/media_util.h"
 #include "media/base/mock_filters.h"
@@ -95,7 +96,7 @@ class AudioDecoderSelectorTest : public ::testing::Test {
   void UseEncryptedStream() {
     AudioDecoderConfig encrypted_audio_config(
         kCodecVorbis, kSampleFormatPlanarF32, CHANNEL_LAYOUT_STEREO, 44100,
-        EmptyExtraData(), true);
+        EmptyExtraData(), EncryptionScheme(true));
     demuxer_stream_->set_audio_decoder_config(encrypted_audio_config);
   }