[Mac] Allow omnibox decorations to decline mouse events.

chrome/browser/cocoa/location_bar/autocomplete_text_field.mm

 // Copyright (c) 2010 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/location_bar/autocomplete_text_field.h"
 
 #include "base/logging.h"
 #import "chrome/browser/cocoa/browser_window_controller.h"
 #import "chrome/browser/cocoa/location_bar/autocomplete_text_field_cell.h"
 #import "chrome/browser/cocoa/location_bar/autocomplete_text_field_editor.h"
@@ skipping 186 matching lines @@
 - (NSUndoManager*)undoManagerForTextView:(NSTextView*)textView {
   if (!undoManager_.get())
     undoManager_.reset([[NSUndoManager alloc] init]);
   return undoManager_.get();
 }
 
 - (void)clearUndoChain {
   [undoManager_ removeAllActions];
 }
 
-// Show the I-beam cursor unless the mouse is over an image within the field
-// (Page Actions or the security icon) in which case show the arrow cursor.
-// TODO(rohitrao): Should default to the arrow cursor.  http://crbug.com/41612
-- (void)resetCursorRects {
-  NSRect fieldBounds = [self bounds];
-  [self addCursorRect:fieldBounds cursor:[NSCursor IBeamCursor]];
-
-  // TODO(shess): This needs to traverse the LocationBarDecorations
-  // and put up a cursor for them, too.  Except for the keyword-search
-  // stuff?  Sigh.
-  // http://crbug.com/48867
-}
-
 // TODO(shess): -resetFieldEditorFrameIfNeeded is the place where
 // changes to the cell layout should be flushed.  LocationBarViewMac
 // and ToolbarController are calling this routine directly, and I
 // think they are probably wrong.
 // http://crbug.com/40053
 - (void)updateCursorAndToolTipRects {
   // This will force |resetCursorRects| to be called, as it is not to be called
   // directly.
   [[self window] invalidateCursorRectsForView:self];
 
@@ skipping 175 matching lines @@
 - (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
   return [dropHandler_ performDragOperation:sender];
 }
 
 - (NSMenu*)decorationMenuForEvent:(NSEvent*)event {
   AutocompleteTextFieldCell* cell = [self cell];
   return [cell decorationMenuForEvent:event inRect:[self bounds] ofView:self];
 }
 
 @end