Encrypted Media: Rename NeedKey to EncryptedMediaInitData.

media/blink/webmediaplayer_impl.h

Index: media/blink/webmediaplayer_impl.h
diff --git a/media/blink/webmediaplayer_impl.h b/media/blink/webmediaplayer_impl.h
index 466b566827f3fdbcba8b34bc153616cbcc9d8e8c..5c33c40a3faa1389827226fccb4824c80ede6f5e 100644
--- a/media/blink/webmediaplayer_impl.h
+++ b/media/blink/webmediaplayer_impl.h
@@ -210,8 +210,8 @@ class MEDIA_EXPORT WebMediaPlayerImpl
   scoped_refptr<VideoFrame> GetCurrentFrameFromCompositor();
 
   // Called when the demuxer encounters encrypted streams.
-  void OnNeedKey(const std::string& init_data_type,
-                 const std::vector<uint8>& init_data);
+  void OnEncryptedMediaInitData(const std::string& init_data_type,
+                                const std::vector<uint8>& init_data);
 
   void SetCdm(CdmContext* cdm_context, const CdmAttachedCB& cdm_attached_cb);