Cleanup a bunch of TODO(shess).

chrome/browser/cocoa/styled_text_field.mm

 // 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 "chrome/browser/cocoa/styled_text_field.h"
 
 #include "base/logging.h"
 #import "chrome/browser/cocoa/styled_text_field_cell.h"
 
 @implementation StyledTextField
@@ skipping 31 matching lines @@
   StyledTextFieldCell* cell = [self styledTextFieldCell];
   const NSRect frame([cell drawingRectForBounds:[self bounds]]);
   NSView* subview = [subviews objectAtIndex:0];
   if (NSEqualRects(frame, [subview frame])) {
     return;
   }
 
   [subview setFrame:frame];
 
   // Make sure the selection remains visible.
-  // TODO(shess) This could be janky if it jerks the visible region
-  // around too much.  I believe that text fields only scroll in
-  // response to selection movement (continuing the selection past the
-  // edge, or arrowing the cursor around).
   [editor scrollRangeToVisible:[editor selectedRange]];
 }
 
 - (CGFloat)availableDecorationWidth {
   NSAttributedString* as = [self attributedStringValue];
   const NSSize size([as size]);
   const NSRect bounds([self bounds]);
   return NSWidth(bounds) - size.width;
 }
 @end