bookmarks: Move bookmark_pasteboard_helper_mac functions into 'bookmarks' namespace.

components/bookmarks/browser/bookmark_pasteboard_helper_mac.mm

 // Copyright 2014 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 "components/bookmarks/browser/bookmark_pasteboard_helper_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/files/file_path.h"
 #include "base/strings/sys_string_conversions.h"
 #include "components/bookmarks/browser/bookmark_node.h"
 #include "ui/base/clipboard/clipboard.h"
 
-using bookmarks::BookmarkNodeData;
-
 NSString* const kBookmarkDictionaryListPboardType =
     @"BookmarkDictionaryListPboardType";
 
+namespace bookmarks {
+
 namespace {
 
 // An unofficial standard pasteboard title type to be provided alongside the
 // |NSURLPboardType|.
 NSString* const kNSURLTitlePboardType = @"public.url-name";
 
 // Pasteboard type used to store profile path to determine which profile
 // a set of bookmarks came from.
 NSString* const kChromiumProfilePathPboardType =
     @"ChromiumProfilePathPboardType";
@@ skipping 295 matching lines @@
 bool PasteboardContainsBookmarks(ui::ClipboardType type) {
   NSPasteboard* pb = PasteboardFromType(type);
 
   NSArray* availableTypes =
       [NSArray arrayWithObjects:kBookmarkDictionaryListPboardType,
                                 kCrWebURLsWithTitlesPboardType,
                                 NSURLPboardType,
                                 nil];
   return [pb availableTypeFromArray:availableTypes] != nil;
 }
+
+}  // namespace bookmarks