Remove obsolete supportsEncryptedMediaMIMEType() from html_viewer.

mojo/services/html_viewer/webmimeregistry_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/services/html_viewer/webmimeregistry_impl.h"
 
 #include "base/files/file_path.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 83 matching lines @@
   const std::string mime_type_ascii = ToASCIIOrEmpty(mime_type);
   if (mime_type_ascii.empty())
     return false;
 
   std::vector<std::string> parsed_codec_ids;
   net::ParseCodecString(ToASCIIOrEmpty(codecs), &parsed_codec_ids, false);
   return media::StreamParserFactory::IsTypeSupported(mime_type_ascii,
                                                      parsed_codec_ids);
 }
 
-bool WebMimeRegistryImpl::supportsEncryptedMediaMIMEType(
-    const blink::WebString& key_system,
-    const blink::WebString& mime_type,
-    const blink::WebString& codecs) {
-  // Only supports ASCII parameters.
-  if (!base::IsStringASCII(key_system) || !base::IsStringASCII(mime_type) ||
-      !base::IsStringASCII(codecs)) {
-    return false;
-  }
-
-  if (key_system.isEmpty())
-    return false;
-
-  const std::string mime_type_ascii = base::UTF16ToASCII(mime_type);
-
-  std::vector<std::string> codec_vector;
-  bool strip_suffix = !net::IsStrictMediaMimeType(mime_type_ascii);
-  net::ParseCodecString(base::UTF16ToASCII(codecs), &codec_vector,
-                        strip_suffix);
-
-  return media::IsSupportedKeySystemWithMediaMimeType(
-      mime_type_ascii, codec_vector, base::UTF16ToASCII(key_system));
-}
-
 blink::WebMimeRegistry::SupportsType
     WebMimeRegistryImpl::supportsNonImageMIMEType(
     const blink::WebString& mime_type) {
   return net::IsSupportedNonImageMimeType(ToASCIIOrEmpty(mime_type)) ?
       blink::WebMimeRegistry::IsSupported :
       blink::WebMimeRegistry::IsNotSupported;
 }
 
 blink::WebString WebMimeRegistryImpl::mimeTypeForExtension(
     const blink::WebString& file_extension) {
   NOTIMPLEMENTED();
   return blink::WebString();
 }
 
 blink::WebString WebMimeRegistryImpl::wellKnownMimeTypeForExtension(
     const blink::WebString& file_extension) {
   NOTIMPLEMENTED();
   return blink::WebString();
 }
 
 blink::WebString WebMimeRegistryImpl::mimeTypeFromFile(
     const blink::WebString& file_path) {
   NOTIMPLEMENTED();
   return blink::WebString();
 }
 
 }  // namespace html_viewer