EME: Remove WidevineCdmType.

components/cdm/renderer/widevine_key_systems.cc

Index: components/cdm/renderer/widevine_key_systems.cc
diff --git a/components/cdm/renderer/widevine_key_systems.cc b/components/cdm/renderer/widevine_key_systems.cc
index 821dd06b1bc458be47ce0362b3dade5400953067..5120d8bc2928cfc9dee19357c721506f2238ae1a 100644
--- a/components/cdm/renderer/widevine_key_systems.cc
+++ b/components/cdm/renderer/widevine_key_systems.cc
@@ -23,7 +23,6 @@ using media::SupportedCodecs;
 namespace cdm {
 
 void AddWidevineWithCodecs(
-    WidevineCdmType widevine_cdm_type,
     SupportedCodecs supported_codecs,
 #if defined(OS_ANDROID)
     SupportedCodecs supported_secure_codecs,
@@ -38,18 +37,6 @@ void AddWidevineWithCodecs(
   KeySystemInfo info;
   info.key_system = kWidevineKeySystem;
 
-  switch (widevine_cdm_type) {
-    case WIDEVINE:
-      break;
-#if defined(OS_ANDROID)
-    case WIDEVINE_HR_NON_COMPOSITING:
-      info.key_system.append(".hrnoncompositing");
-      break;
-#endif  // defined(OS_ANDROID)
-    default:
-      NOTREACHED();
-  }
-
   // TODO(xhwang): A container or an initDataType may be supported even though
   // there are no codecs supported in that container. Fix this when we support
   // initDataType.