Extracted media mime type checks from net/base/ into media/base/

net/base/mime_util.h

 // Copyright (c) 2012 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.
 
 #ifndef NET_BASE_MIME_UTIL_H__
 #define NET_BASE_MIME_UTIL_H__
 
 // This file defines MIME utility functions. All of them assume the MIME type
 // to be of the format specified by rfc2045. According to it, MIME types are
 // case strongly insensitive except parameter values, which may or may not be
@@ skipping 34 matching lines @@
 
 // Get the preferred extension (if any) associated with the given mime type.
 // Returns true if a corresponding file extension exists.  The extension is
 // returned without a prefixed dot, ex "html".
 NET_EXPORT bool GetPreferredExtensionForMimeType(
     const std::string& mime_type,
     base::FilePath::StringType* extension);
 
 // Check to see if a particular MIME type is in our list.
 NET_EXPORT bool IsSupportedImageMimeType(const std::string& mime_type);
-NET_EXPORT bool IsSupportedMediaMimeType(const std::string& mime_type);
 NET_EXPORT bool IsSupportedNonImageMimeType(const std::string& mime_type);
 NET_EXPORT bool IsUnsupportedTextMimeType(const std::string& mime_type);
 NET_EXPORT bool IsSupportedJavascriptMimeType(const std::string& mime_type);
 NET_EXPORT bool IsSupportedCertificateMimeType(const std::string& mime_type);
 
-// Convenience function.
-NET_EXPORT bool IsSupportedMimeType(const std::string& mime_type);
+// TODO(servolk): This function is deprecated, use content::IsSupportedMimeType
+// instead. This one doesn't include supported media mime types. It will
+// be removed once net::Filter stops using it and the rest of mime_util code
+// is moved to content/public/common/mime_util
+NET_EXPORT bool IsSupportedMimeType_deprecated(const std::string& mime_type);
 
 // Returns true if this the mime_type_pattern matches a given mime-type.
 // Checks for absolute matching and wildcards. MIME types are case insensitive.
 NET_EXPORT bool MatchesMimeType(const std::string& mime_type_pattern,
                                 const std::string& mime_type);
 
 // Returns true if the |type_string| is a correctly-formed mime type specifier
 // with no parameter, i.e. string that matches the following ABNF (see the
 // definition of content ABNF in RFC2045 and media-type ABNF httpbis p2
 // semantics).
 //
 //   token "/" token
 //
 // If |top_level_type| is non-NULL, sets it to parsed top-level type string.
 // If |subtype| is non-NULL, sets it to parsed subtype string.
 NET_EXPORT bool ParseMimeTypeWithoutParameter(const std::string& type_string,
                                               std::string* top_level_type,
                                               std::string* subtype);
 
 // Returns true if the |type_string| is a top-level type of any media type
 // registered with IANA media types registry at
 // http://www.iana.org/assignments/media-types/media-types.xhtml or an
 // experimental type (type with x- prefix).
 //
 // This method doesn't check that the input conforms to token ABNF, so if input
 // is experimental type strings, you need to check check that before using
 // this method.
 NET_EXPORT bool IsValidTopLevelMimeType(const std::string& type_string);
 
-// Returns true if and only if all codecs are supported, false otherwise.
-NET_EXPORT bool AreSupportedMediaCodecs(const std::vector<std::string>& codecs);
-
-// Parses a codec string, populating |codecs_out| with the prefix of each codec
-// in the string |codecs_in|. For example, passed "aaa.b.c,dd.eee", if
-// |strip| == true |codecs_out| will contain {"aaa", "dd"}, if |strip| == false
-// |codecs_out| will contain {"aaa.b.c", "dd.eee"}.
-// See http://www.ietf.org/rfc/rfc4281.txt.
-NET_EXPORT void ParseCodecString(const std::string& codecs,
-                                 std::vector<std::string>* codecs_out,
-                                 bool strip);
-
-// Check to see if a particular MIME type is in our list which only supports a
-// certain subset of codecs.
-NET_EXPORT bool IsStrictMediaMimeType(const std::string& mime_type);
-
-// Indicates that the MIME type and (possible codec string) are supported by the
-// underlying platform.
-enum SupportsType {
-  // The underlying platform is known not to support the given MIME type and
-  // codec combination.
-  IsNotSupported,
-
-  // The underlying platform is known to support the given MIME type and codec
-  // combination.
-  IsSupported,
-
-  // The underlying platform is unsure whether the given MIME type and codec
-  // combination can be rendered or not before actually trying to play it.
-  MayBeSupported
-};
-
-// Checks the |mime_type| and |codecs| against the MIME types known to support
-// only a particular subset of codecs.
-// * Returns IsSupported if the |mime_type| is supported and all the codecs
-//   within the |codecs| are supported for the |mime_type|.
-// * Returns MayBeSupported if the |mime_type| is supported and is known to
-//   support only a subset of codecs, but |codecs| was empty. Also returned if
-//   all the codecs in |codecs| are supported, but additional codec parameters
-//   were supplied (such as profile) for which the support cannot be decided.
-// * Returns IsNotSupported if either the |mime_type| is not supported or the
-//   |mime_type| is supported but at least one of the codecs within |codecs| is
-//   not supported for the |mime_type|.
-NET_EXPORT SupportsType IsSupportedStrictMediaMimeType(
-    const std::string& mime_type,
-    const std::vector<std::string>& codecs);
-
 // Get the extensions associated with the given mime type. There could be
 // multiple extensions for a given mime type, like "html,htm" for "text/html",
 // or "txt,text,html,..." for "text/*".
 // Note that we do not erase the existing elements in the the provided vector.
 // Instead, we append the result to it.
 NET_EXPORT void GetExtensionsForMimeType(
     const std::string& mime_type,
     std::vector<base::FilePath::StringType>* extensions);
 
-// Test only method that removes proprietary media types and codecs from the
-// list of supported MIME types and codecs. These types and codecs must be
-// removed to ensure consistent layout test results across all Chromium
-// variations.
-NET_EXPORT void RemoveProprietaryMediaTypesAndCodecsForTests();
-
 // A list of supported certificate-related mime types.
 //
 // A Java counterpart will be generated for this enum.
 // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net
 enum CertificateMimeType {
   CERTIFICATE_MIME_TYPE_UNKNOWN,
   CERTIFICATE_MIME_TYPE_X509_USER_CERT,
   CERTIFICATE_MIME_TYPE_X509_CA_CERT,
   CERTIFICATE_MIME_TYPE_PKCS12_ARCHIVE,
 };
 
 NET_EXPORT CertificateMimeType GetCertificateMimeTypeForMimeType(
     const std::string& mime_type);
 
 // Prepares one value as part of a multi-part upload request.
 NET_EXPORT void AddMultipartValueForUpload(const std::string& value_name,
                                            const std::string& value,
                                            const std::string& mime_boundary,
                                            const std::string& content_type,
                                            std::string* post_data);
 
 // Adds the final delimiter to a multi-part upload request.
 NET_EXPORT void AddMultipartFinalDelimiterForUpload(
     const std::string& mime_boundary,
     std::string* post_data);
 
 }  // namespace net
 
 #endif  // NET_BASE_MIME_UTIL_H__