Various MimeUtil cleanups.

third_party/WebKit/Source/platform/network/mime/MIMETypeRegistry.cpp

Index: third_party/WebKit/Source/platform/network/mime/MIMETypeRegistry.cpp
diff --git a/third_party/WebKit/Source/platform/network/mime/MIMETypeRegistry.cpp b/third_party/WebKit/Source/platform/network/mime/MIMETypeRegistry.cpp
index d3ba4637e257cc8888249f1b013b81757a68946e..33b016927bb9dd38033d88075c676b7828a5fd40 100644
--- a/third_party/WebKit/Source/platform/network/mime/MIMETypeRegistry.cpp
+++ b/third_party/WebKit/Source/platform/network/mime/MIMETypeRegistry.cpp
@@ -140,7 +140,7 @@ MIMETypeRegistry::SupportsType MIMETypeRegistry::supportsMediaMIMEType(
     const String& codecs) {
   const std::string asciiMimeType = ToLowerASCIIOrEmpty(mimeType);
   std::vector<std::string> codecVector;
-  media::ParseCodecString(ToASCIIOrEmpty(codecs), &codecVector, false);
+  media::SplitCodecsToVector(ToASCIIOrEmpty(codecs), &codecVector, false);
   return static_cast<SupportsType>(
       media::IsSupportedMediaFormat(asciiMimeType, codecVector));
 }
@@ -151,7 +151,7 @@ bool MIMETypeRegistry::isSupportedMediaSourceMIMEType(const String& mimeType,
   if (asciiMimeType.empty())
     return false;
   std::vector<std::string> parsedCodecIds;
-  media::ParseCodecString(ToASCIIOrEmpty(codecs), &parsedCodecIds, false);
+  media::SplitCodecsToVector(ToASCIIOrEmpty(codecs), &parsedCodecIds, false);
   return static_cast<MIMETypeRegistry::SupportsType>(
       media::StreamParserFactory::IsTypeSupported(asciiMimeType,
                                                   parsedCodecIds));