VTTCue: Remove dead exception throwing code in setLine/setPosition

Source/core/html/track/vtt/VTTCue.cpp

Index: Source/core/html/track/vtt/VTTCue.cpp
diff --git a/Source/core/html/track/vtt/VTTCue.cpp b/Source/core/html/track/vtt/VTTCue.cpp
index fa09bd03d570112a3eb16582db9ec5bfc24e0f0f..5537c2b3b2e533a8ab1bfc6ba5280d954cc39895 100644
--- a/Source/core/html/track/vtt/VTTCue.cpp
+++ b/Source/core/html/track/vtt/VTTCue.cpp
@@ -328,14 +328,8 @@ void VTTCue::line(DoubleOrAutoKeyword& result) const
         result.setDouble(m_linePosition);
 }
 
-void VTTCue::setLine(const DoubleOrAutoKeyword& position, ExceptionState& exceptionState)
+void VTTCue::setLine(const DoubleOrAutoKeyword& position)
 {
-    // FIXME: Expecting bindings code to handle this case: https://crbug.com/450252.
-    if (position.isDouble() && !std::isfinite(position.getAsDouble())) {
-        exceptionState.throwTypeError("The provided double value is non-finite.");
-        return;
-    }
-
     // http://dev.w3.org/html5/webvtt/#dfn-vttcue-line
     // On setting, the text track cue line position must be set to the new
     // value; if the new value is the string "auto", then it must be
@@ -374,12 +368,6 @@ void VTTCue::position(DoubleOrAutoKeyword& result) const
 
 void VTTCue::setPosition(const DoubleOrAutoKeyword& position, ExceptionState& exceptionState)
 {
-    // FIXME: Expecting bindings code to handle this case: https://crbug.com/450252.
-    if (position.isDouble() && !std::isfinite(position.getAsDouble())) {
-        exceptionState.throwTypeError("The provided double value is non-finite.");
-        return;
-    }
-
     // http://dev.w3.org/html5/webvtt/#dfn-vttcue-position
     // On setting, if the new value is negative or greater than 100, then an
     // IndexSizeError exception must be thrown. Otherwise, the text track cue