Introduce RemoveRowTableModel interface, let GeolocationExceptionsTableModel derive from it.

chrome/browser/cocoa/geolocation_exceptions_window_controller.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/geolocation_exceptions_window_controller.h"
 
 #include <set>
 
 #include "app/l10n_util_mac.h"
 #include "app/table_model_observer.h"
@@ skipping 109 matching lines @@
 }
 
 - (void)keyDown:(NSEvent*)event {
   NSString* chars = [event charactersIgnoringModifiers];
   if ([chars length] == 1) {
     switch ([chars characterAtIndex:0]) {
       case NSDeleteCharacter:
       case NSDeleteFunctionKey:
         // Delete deletes.
         if ([[tableView_ selectedRowIndexes] count] > 0)
-          [self removeException:self];
+          [self removeRow:self];
         return;
     }
   }
   [super keyDown:event];
 }
 
 - (void)attachSheetTo:(NSWindow*)window {
   [NSApp beginSheet:[self window]
      modalForWindow:window
       modalDelegate:self
      didEndSelector:@selector(sheetDidEnd:returnCode:contextInfo:)
         contextInfo:nil];
 }
 
 - (void)sheetDidEnd:(NSWindow*)sheet
          returnCode:(NSInteger)returnCode
         contextInfo:(void*)context {
   [sheet close];
   [sheet orderOut:self];
 }
 
 - (IBAction)closeSheet:(id)sender {
   [NSApp endSheet:[self window]];
 }
 
-- (IBAction)removeException:(id)sender {
+- (IBAction)removeRow:(id)sender {
   GeolocationExceptionsTableModel::Rows rows;
   [self selectedRows:&rows];
-  model_->RemoveExceptions(rows);
+  model_->RemoveRows(rows);
 }
 
-- (IBAction)removeAllExceptions:(id)sender {
+- (IBAction)removeAll:(id)sender {
   model_->RemoveAll();
 }
 
 // Table View Data Source -----------------------------------------------------
 
 - (NSInteger)numberOfRowsInTableView:(NSTableView*)table {
   return model_->RowCount();
 }
 
 - (id)tableView:(NSTableView*)tv
@@ skipping 28 matching lines @@
   for (NSUInteger index = [selection lastIndex]; index != NSNotFound;
        index = [selection indexLessThanIndex:index])
     rows->insert(index);
 }
 
 // This method appropriately sets the enabled states on the table's editing
 // buttons.
 - (void)adjustEditingButtons {
   GeolocationExceptionsTableModel::Rows rows;
   [self selectedRows:&rows];
-  [removeButton_ setEnabled:model_->CanRemoveExceptions(rows)];
+  [removeButton_ setEnabled:model_->CanRemoveRows(rows)];
   [removeAllButton_ setEnabled:([tableView_ numberOfRows] > 0)];
 }
 
 - (void)modelDidChange {
   [tableView_ reloadData];
   [self adjustEditingButtons];
 }
 
 @end