Drop [LegacyInterfaceTypeChecking] for Selection.prototype.addRange

third_party/WebKit/Source/core/editing/DOMSelection.cpp

Index: third_party/WebKit/Source/core/editing/DOMSelection.cpp
diff --git a/third_party/WebKit/Source/core/editing/DOMSelection.cpp b/third_party/WebKit/Source/core/editing/DOMSelection.cpp
index 5578cccf233a3cf544baec14ce8238e1264d8b72..d1d378ff0f4071771e4965932dcb043b64f536bd 100644
--- a/third_party/WebKit/Source/core/editing/DOMSelection.cpp
+++ b/third_party/WebKit/Source/core/editing/DOMSelection.cpp
@@ -393,14 +393,10 @@ void DOMSelection::removeAllRanges()
 
 void DOMSelection::addRange(Range* newRange)
 {
-    if (!m_frame)
-        return;
+    ASSERT(newRange);
 
-    // FIXME: Should we throw DOMException for error cases below?
-    if (!newRange) {
-        addConsoleError("The given range is null.");
+    if (!m_frame)
         return;
-    }
 
     if (!newRange->inDocument()) {
         addConsoleError("The given range isn't in document.");