media: Require SecureContext for EME APIs

third_party/WebKit/Source/core/frame/Deprecation.cpp

Index: third_party/WebKit/Source/core/frame/Deprecation.cpp
diff --git a/third_party/WebKit/Source/core/frame/Deprecation.cpp b/third_party/WebKit/Source/core/frame/Deprecation.cpp
index e19e36890d9944098d25f423c8aea77947267231..03d927809da4cf28b658c85010b58b1564d57664 100644
--- a/third_party/WebKit/Source/core/frame/Deprecation.cpp
+++ b/third_party/WebKit/Source/core/frame/Deprecation.cpp
@@ -321,14 +321,6 @@ String Deprecation::deprecationMessage(UseCounter::Feature feature) {
              "secure origin, such as HTTPS. See https://goo.gl/rStTGz for more "
              "details.";
 
-    case UseCounter::EncryptedMediaInsecureOrigin:
-      return String::format(
-          "Using requestMediaKeySystemAccess() on insecure origins is "
-          "deprecated and will be removed in %s. You should consider "
-          "switching your application to a secure origin, such as HTTPS. See "
-          "https://goo.gl/rStTGz for more details.",
-          milestoneString(M58));
-
     case UseCounter::MediaSourceAbortRemove:
       return "Using SourceBuffer.abort() to abort remove()'s asynchronous "
              "range removal is deprecated due to specification change. Support "