Remove prefixed EME.

media/base/media_client.cc

Index: media/base/media_client.cc
diff --git a/media/base/media_client.cc b/media/base/media_client.cc
index bcc6de0bffe6924952e1d32d3ac8c18a76c319b9..e7026aadc13f120c7fd59745ce73e7b5a7da89c7 100644
--- a/media/base/media_client.cc
+++ b/media/base/media_client.cc
@@ -20,12 +20,9 @@ MediaClient* GetMediaClient() {
 
 KeySystemInfoForUMA::KeySystemInfoForUMA(
     const std::string& key_system,
-    const std::string& key_system_name_for_uma,
-    bool reports_key_system_support_to_uma)
+    const std::string& key_system_name_for_uma)
     : key_system(key_system),
-      key_system_name_for_uma(key_system_name_for_uma),
-      reports_key_system_support_to_uma(reports_key_system_support_to_uma) {
-}
+      key_system_name_for_uma(key_system_name_for_uma) {}
 
 KeySystemInfoForUMA::~KeySystemInfoForUMA() {
 }