[Devtools] Seperate columns out of NetworkLogView into own file

third_party/WebKit/Source/devtools/devtools.gypi

 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #         * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #         * Redistributions in binary form must reproduce the above
@@ skipping 543 matching lines @@
             'front_end/network/xmlView.css',
             'front_end/network/BlockedURLsPane.js',
             'front_end/network/EventSourceMessagesView.js',
             'front_end/network/FilterSuggestionBuilder.js',
             'front_end/network/HARWriter.js',
             'front_end/network/JSONView.js',
             'front_end/network/NetworkConfigView.js',
             'front_end/network/NetworkDataGridNode.js',
             'front_end/network/NetworkItemView.js',
             'front_end/network/NetworkLogView.js',
+            'front_end/network/NetworkLogViewColumns.js',
             'front_end/network/NetworkOverview.js',
             'front_end/network/NetworkPanel.js',
             'front_end/network/NetworkTimeCalculator.js',
             'front_end/network/RequestCookiesView.js',
             'front_end/network/RequestHeadersView.js',
             'front_end/network/RequestHTMLView.js',
             'front_end/network/RequestPreviewView.js',
             'front_end/network/RequestResponseView.js',
             'front_end/network/RequestTimingView.js',
             'front_end/network/RequestView.js',
@@ skipping 325 matching lines @@
             'front_end/Images/toolbarResizerVertical.png',
             'front_end/Images/toolbarItemSelected.png',
             'front_end/Images/touchCursor.png',
             'front_end/Images/touchCursor_2x.png',
         ],
         'devtools_extension_api_files': [
             'front_end/extensions/ExtensionAPI.js',
         ],
     },
 }