Out of line cleanups for Mac.

chrome/browser/ui/cocoa/rwhvm_editcommand_helper.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/ui/cocoa/rwhvm_editcommand_helper.h"
 
 #import <objc/runtime.h>
 
 #include "chrome/browser/renderer_host/render_widget_host.h"
 #import "chrome/browser/renderer_host/render_widget_host_view_mac.h"
@@ skipping 161 matching lines @@
   int selector_len = [selector_str length];
   return [selector_str substringToIndex:selector_len - 1];
 }
 
 RWHVMEditCommandHelper::RWHVMEditCommandHelper() {
   for (size_t i = 0; i < arraysize(kEditCommands); ++i) {
     edit_command_set_.insert(kEditCommands[i]);
   }
 }
 
+RWHVMEditCommandHelper::~RWHVMEditCommandHelper() {}
+
 // Dynamically adds Selectors to the aformentioned class.
 void RWHVMEditCommandHelper::AddEditingSelectorsToClass(Class klass) {
   for (size_t i = 0; i < arraysize(kEditCommands); ++i) {
     // Append trailing ':' to command name to get selector name.
     NSString* sel_str = [NSString stringWithFormat: @"%s:", kEditCommands[i]];
 
     SEL edit_selector = NSSelectorFromString(sel_str);
     // May want to use @encode() for the last parameter to this method.
     // If class_addMethod fails we assume that all the editing selectors where
     // added to the class.
@@ skipping 26 matching lines @@
 NSArray* RWHVMEditCommandHelper::GetEditSelectorNames() {
   size_t num_edit_commands = arraysize(kEditCommands);
   NSMutableArray* ret = [NSMutableArray arrayWithCapacity:num_edit_commands];
 
   for (size_t i = 0; i < num_edit_commands; ++i) {
       [ret addObject:[NSString stringWithUTF8String:kEditCommands[i]]];
   }
 
   return ret;
 }