Verify MediaKeys parameter values consistently

Source/platform/drm/ContentDecryptionModule.cpp

 /*
  * Copyright (C) 2013 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
@@ skipping 19 matching lines @@
 
 #include "config.h"
 #include "platform/drm/ContentDecryptionModule.h"
 
 #include "platform/NotImplemented.h"
 #include "platform/drm/ContentDecryptionModuleSession.h"
 #include "public/platform/Platform.h"
 
 namespace WebCore {
 
-bool ContentDecryptionModule::supportsKeySystem(const String& keySystem)
-{
-    // FIXME: Chromium should handle this, possibly using
-    // MIMETypeRegistry::isSupportedEncryptedMediaMIMEType().
-    notImplemented();
-    return keySystem == "org.w3.clearkey";
-}
-
 PassOwnPtr<ContentDecryptionModule> ContentDecryptionModule::create(const String& keySystem)
 {
     ASSERT(!keySystem.isEmpty());
     OwnPtr<blink::WebContentDecryptionModule> cdm = adoptPtr(blink::Platform::current()->createContentDecryptionModule(keySystem));
     if (!cdm)
         return nullptr;
     return adoptPtr(new ContentDecryptionModule(cdm.release()));
 }
 
 ContentDecryptionModule::ContentDecryptionModule(PassOwnPtr<blink::WebContentDecryptionModule> cdm)
     : m_cdm(cdm)
 {
     ASSERT(m_cdm);
 }
 
 ContentDecryptionModule::~ContentDecryptionModule()
 {
 }
 
-bool ContentDecryptionModule::supportsMIMEType(const String& mimeType)
-{
-    // FIXME: Chromium should handle this, possibly using
-    // MIMETypeRegistry::isSupportedEncryptedMediaMIMEType().
-    notImplemented();
-    return mimeType == "video/webm";
-}
-
 PassOwnPtr<ContentDecryptionModuleSession> ContentDecryptionModule::createSession(ContentDecryptionModuleSessionClient* client)
 {
     return adoptPtr(new ContentDecryptionModuleSession(m_cdm.get(), client));
 }
 
 } // namespace WebCore