Fix: Adding list of supported codecs for MP4 containers

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index 91906df8dbfc6a5ea5e8767a53602f41fe9c0f80..bc7ae3d9b76ca60cfbca8e501572dac4ee9e9ad8 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -435,14 +435,8 @@ RendererWebKitPlatformSupportImpl::MimeRegistry::supportsMediaMIMEType(
     // Check if the codecs are a perfect match.
     std::vector<std::string> strict_codecs;
     net::ParseCodecString(ToASCIIOrEmpty(codecs), &strict_codecs, false);
-    if (net::IsSupportedStrictMediaMimeType(mime_type_ascii, strict_codecs))
-      return IsSupported;
-
-    // We support the container, but no codecs were specified.
-    if (codecs.isNull())
-      return MayBeSupported;
-
-    return IsNotSupported;
+    return static_cast<WebMimeRegistry::SupportsType> (
+        net::IsSupportedStrictMediaMimeType(mime_type_ascii,strict_codecs));
   }
 
   // If we don't recognize the codec, it's possible we support it.