Bug 853569 - Fix nsTArray::SetCapacity callers in nsXULContentSink to not look at the return value; r=bzbarsky

--HG--
extra : rebase_source : 1916e6aa6752fa72cd81f64084bcb525a9ca5155

content/xul/document/src/nsXULContentSink.cpp

@@ -548,8 +548,7 @@ XULContentSinkImpl::HandleEndElement(const PRUnichar *aName)
 
         int32_t count = children->Length();
         if (count) {
-            if (!element->mChildren.SetCapacity(count))
-                return NS_ERROR_OUT_OF_MEMORY;
+            element->mChildren.SetCapacity(count);
 
             for (int32_t i = 0; i < count; ++i)
                 element->mChildren.AppendElement(children->ElementAt(i));