Properly collapse newlines (and leading/trailing whitespace) from pasted...

chrome/browser/cocoa/autocomplete_text_field_editor.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <Cocoa/Cocoa.h>
 
 // Field editor used for the autocomplete field.
 @interface AutocompleteTextFieldEditor : NSTextView {
 }
 
 // Copy contents of the TextView to the designated clipboard as plain
 // text.
 - (void)performCopy:(NSPasteboard*)pb;
 
 // Same as above, note that this calls through to performCopy.
 - (void)performCut:(NSPasteboard*)pb;
+
+// Paste the contents of the designated clipboard into the TextView as
+// plain text, killing newlines and leading/trailing spaces.
+- (void)performPaste:(NSPasteboard*)pb;
+
 @end