media: Replace DecryptorReadyCB with CdmReadyCB.

media/base/audio_renderer.h

Index: media/base/audio_renderer.h
diff --git a/media/base/audio_renderer.h b/media/base/audio_renderer.h
index 586936a1e81bc4e5f94da23ffc12bd2f6904e514..aa59bf30ffd2f563b83801e70de08d9c6f8c07f3 100644
--- a/media/base/audio_renderer.h
+++ b/media/base/audio_renderer.h
@@ -8,7 +8,7 @@
 #include "base/callback.h"
 #include "base/time/time.h"
 #include "media/base/buffering_state.h"
-#include "media/base/decryptor.h"
+#include "media/base/cdm_context.h"
 #include "media/base/media_export.h"
 #include "media/base/pipeline_status.h"
 
@@ -28,8 +28,8 @@ class MEDIA_EXPORT AudioRenderer {
   // completion. If initialization fails, only |init_cb| (not |error_cb|) will
   // be called.
   //
-  // |set_decryptor_ready_cb| is fired when a Decryptor is needed, i.e. when the
-  // |stream| is encrypted.
+  // |set_cdm_ready_cb| is fired when a CDM is needed, i.e. when the |stream| is
+  // encrypted.
   //
   // |statistics_cb| is executed periodically with audio rendering stats.
   //
@@ -45,7 +45,7 @@ class MEDIA_EXPORT AudioRenderer {
   virtual void Initialize(
       DemuxerStream* stream,
       const PipelineStatusCB& init_cb,
-      const SetDecryptorReadyCB& set_decryptor_ready_cb,
+      const SetCdmReadyCB& set_cdm_ready_cb,
       const StatisticsCB& statistics_cb,
       const BufferingStateCB& buffering_state_cb,
       const base::Closure& ended_cb,