[ios] Adds support for Find in Page to the new architecture.

ios/clean/chrome/browser/ui/tools/tools_mediator.mm

 // Copyright 2017 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 "ios/clean/chrome/browser/ui/tools/tools_mediator.h"
 
 #import "ios/clean/chrome/browser/ui/actions/settings_actions.h"
+#import "ios/clean/chrome/browser/ui/tools/tools_actions.h"
 #import "ios/clean/chrome/browser/ui/tools/tools_consumer.h"
 #import "ios/clean/chrome/browser/ui/tools/tools_menu_item.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 @interface ToolsMediator ()
 @property(nonatomic, strong) id<ToolsConsumer> consumer;
 @end
@@ skipping 32 matching lines @@
 
   menuItems[3].title = @"Reading List";
 
   menuItems[4].title = @"Recent Tabs";
 
   menuItems[5].title = @"History";
 
   menuItems[6].title = @"Report an Issue";
 
   menuItems[7].title = @"Find in Page…";
+  menuItems[7].action = @selector(showFindInPage);
 
   menuItems[8].title = @"Request Desktop Site";
 
   menuItems[9].title = @"Settings";
   menuItems[9].action = @selector(showSettings:);
 
   menuItems[10].title = @"Help";
 
   [_consumer setToolsMenuItems:menuItems];
 }
 
 @end