Implemented rest of webkit api/glue code needed for HTML5 media canPlayType().

webkit/api/public/WebMimeRegistry.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
- * 
+ *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebMimeRegistry_h
 #define WebMimeRegistry_h
 
 #include "WebCommon.h"
 
 namespace WebKit {
     class WebString;
 
     class WebMimeRegistry {
     public:
-        virtual bool supportsImageMIMEType(const WebString& mimeType) = 0;
-        virtual bool supportsJavaScriptMIMEType(const WebString& mimeType) = 0;
-        virtual bool supportsMediaMIMEType(const WebString& mimeType) = 0;
-        virtual bool supportsNonImageMIMEType(const WebString& mimeType) = 0;
+        enum SupportsType { IsNotSupported, IsSupported, MayBeSupported };
+
+        virtual SupportsType supportsImageMIMEType(const WebString& mimeType) = 0;
+        virtual SupportsType supportsJavaScriptMIMEType(const WebString& mimeType) = 0;
+        virtual SupportsType supportsMediaMIMEType(const WebString& mimeType,
+                                                   const WebString& codecs) = 0;
+        virtual SupportsType supportsNonImageMIMEType(const WebString& mimeType) = 0;
 
         virtual WebString mimeTypeForExtension(const WebString& fileExtension) = 0;
         virtual WebString mimeTypeFromFile(const WebString& filePath) = 0;
         virtual WebString preferredExtensionForMIMEType(const WebString& mimeType) = 0;
     };
 
 } // namespace WebKit
 
 #endif