Put file_system messages in their own file and move them to content, in prepa...

chrome/browser/accessibility/browser_accessibility_manager_mac.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.
 
 #include "chrome/browser/accessibility/browser_accessibility_manager_mac.h"
 
+#import "base/logging.h"
 #import "chrome/browser/accessibility/browser_accessibility_cocoa.h"
 #include "chrome/common/render_messages_params.h"
 
 // static
 BrowserAccessibilityManager* BrowserAccessibilityManager::Create(
     gfx::NativeView parent_view,
     const WebAccessibility& src,
     BrowserAccessibilityDelegate* delegate,
     BrowserAccessibilityFactory* factory) {
   return new BrowserAccessibilityManagerMac(
@@ skipping 40 matching lines @@
       break;
     case ViewHostMsg_AccessibilityNotification_Params::
         NOTIFICATION_TYPE_SELECTED_TEXT_CHANGED:
       event_id = NSAccessibilitySelectedTextChangedNotification;
       break;
   }
   BrowserAccessibilityCocoa* native_node = node->toBrowserAccessibilityCocoa();
   DCHECK(native_node);
   NSAccessibilityPostNotification(native_node, event_id);
 }