Fix build oops. I forgot to add WebScreenInfoFactory to the build.

webkit/webkit.gyp

 # 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.
 
 {
   'variables': {
     'feature_defines': [
       'ENABLE_DATABASE=1',
       'ENABLE_DASHBOARD_SUPPORT=0',
       'ENABLE_JAVASCRIPT_DEBUGGER=0',
@@ skipping 4093 matching lines @@
         '../third_party/WebKit/WebKit/chromium/public/WebClipboard.h',
         '../third_party/WebKit/WebKit/chromium/public/WebCommon.h',
         '../third_party/WebKit/WebKit/chromium/public/WebConsoleMessage.h',
         '../third_party/WebKit/WebKit/chromium/public/WebFindInPageRequest.h',
         '../third_party/WebKit/WebKit/chromium/public/WebImage.h',
         '../third_party/WebKit/WebKit/chromium/public/WebKit.h',
         '../third_party/WebKit/WebKit/chromium/public/WebKitClient.h',
         '../third_party/WebKit/WebKit/chromium/public/WebMimeRegistry.h',
         '../third_party/WebKit/WebKit/chromium/public/WebPoint.h',
         '../third_party/WebKit/WebKit/chromium/public/WebRect.h',
+        '../third_party/WebKit/WebKit/chromium/public/WebScreenInfo.h',
         '../third_party/WebKit/WebKit/chromium/public/WebScriptSource.h',
         '../third_party/WebKit/WebKit/chromium/public/WebSize.h',
         '../third_party/WebKit/WebKit/chromium/public/WebString.h',
         '../third_party/WebKit/WebKit/chromium/public/WebURL.h',
         '../third_party/WebKit/WebKit/chromium/src/ChromiumBridge.cpp',
         '../third_party/WebKit/WebKit/chromium/src/ChromiumCurrentTime.cpp',
         '../third_party/WebKit/WebKit/chromium/src/ChromiumThreading.cpp',
         '../third_party/WebKit/WebKit/chromium/src/WebCache.cpp',
         '../third_party/WebKit/WebKit/chromium/src/WebCString.cpp',
         '../third_party/WebKit/WebKit/chromium/src/WebImageSkia.cpp',
         '../third_party/WebKit/WebKit/chromium/src/WebInputEvent.cpp',
         '../third_party/WebKit/WebKit/chromium/src/WebKit.cpp',
         '../third_party/WebKit/WebKit/chromium/src/WebString.cpp',
         '../third_party/WebKit/WebKit/chromium/src/WebURL.cpp',
       ],
       'conditions': [
         ['OS=="linux"', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
           'include_dirs': [
             '../third_party/WebKit/WebKit/chromium/public/gtk',
           ],
           'sources': [
             '../third_party/WebKit/WebKit/chromium/src/gtk/WebInputEventFactory.cpp',
+            '../third_party/WebKit/WebKit/chromium/src/gtk/WebScreenInfoFactory.cpp',
           ],
         }],
         ['OS=="mac"', {
           'include_dirs': [
             '../third_party/WebKit/WebKit/chromium/public/mac',
           ],
           'sources': [
             '../third_party/WebKit/WebKit/chromium/src/mac/WebInputEventFactory.mm',
+            '../third_party/WebKit/WebKit/chromium/src/mac/WebScreenInfoFactory.mm',
           ],
           'sources!': [
             '../third_party/WebKit/WebKit/chromium/src/WebImageSkia.cpp',
           ],
         }],
         ['OS=="win"', {
           'include_dirs': [
             '../third_party/WebKit/WebKit/chromium/public/win',
           ],
           'sources': [
             '../third_party/WebKit/WebKit/chromium/public/win/WebSandboxSupport.h',
             '../third_party/WebKit/WebKit/chromium/public/win/WebThemeEngine.h',
             '../third_party/WebKit/WebKit/chromium/src/win/WebInputEventFactory.cpp',
+            '../third_party/WebKit/WebKit/chromium/src/win/WebScreenInfoFactory.cpp',
           ],
         }],
       ],
     },
     {
       'target_name': 'webkit_resources',
       'type': 'none',
       'dependencies': [
         'webcore',
         'webkit',
@@ skipping 300 matching lines @@
             'default_plugin/default_plugin.gyp:default_plugin',
           ],
           'sources!': [
             'glue/plugins/plugin_stubs.cc',
           ],
         }],
       ],
     },
   ],
 }