Replace all remaining IDL finitude type checks with [TypeChecking=Unrestricted]

Source/modules/mediasource/SourceBuffer.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 226 matching lines @@
 {
     // Section 3.1 appendWindowEnd attribute setter steps.
     // https://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html#widl-SourceBuffer-appendWindowEnd
     // 1. If this object has been removed from the sourceBuffers attribute of the parent media source then throw an
     //    InvalidStateError exception and abort these steps.
     // 2. If the updating attribute equals true, then throw an InvalidStateError exception and abort these steps.
     if (throwExceptionIfRemovedOrUpdating(isRemoved(), m_updating, exceptionState))
         return;
 
     // 3. If the new value equals NaN, then throw an InvalidAccessError and abort these steps.
-    // 4. If the new value is less than or equal to appendWindowStart then throw an InvalidAccessError
-    //    exception and abort these steps.
     if (std::isnan(end)) {
         exceptionState.throwDOMException(InvalidAccessError, ExceptionMessages::notAFiniteNumber(end));
         return;
     }
+    // 4. If the new value is less than or equal to appendWindowStart then throw an InvalidAccessError
+    //    exception and abort these steps.
     if (end <= m_appendWindowStart) {
         // FIXME: Use ExceptionState::indexExceedsMinimumBound() once it lands.
         exceptionState.throwDOMException(InvalidAccessError, "The value provided ('" + String::number(end) + "') is less than or equal to the minimum value (" + String::number(m_appendWindowStart) + ").");
         return;
     }
 
     m_webSourceBuffer->setAppendWindowEnd(end);
 
     // 5. Update the attribute to the new value.
     m_appendWindowEnd = end;
@@ skipping 435 matching lines @@
     appendStreamDone(false);
 }
 
 void SourceBuffer::trace(Visitor* visitor)
 {
     visitor->trace(m_source);
     visitor->trace(m_stream);
 }
 
 } // namespace WebCore