Make startup_tests build and run on Linux (except reference tests).

chrome/test/automation/automation.scons

 # Copyright (c) 2006-2008 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('env')
 
 env = env.Clone()
 
 env.ApplySConscript([
     '$CHROME_DIR/third_party/wtl/using_wtl.scons',
@@ skipping 24 matching lines @@
     'tab_proxy.cc',
     'tab_proxy.h',
     'window_proxy.cc',
     'window_proxy.h',
 ])
 
 if not env.Bit('windows'):
   # TODO(port): port.
   input_files.Remove(
       'autocomplete_edit_proxy.cc',
-      'browser_proxy.cc',
       'constrained_window_proxy.cc',
       'tab_proxy.cc',
       'window_proxy.cc',
   )
 
 env.ChromeLibrary('automation', input_files)
 
 p = env.ChromeMSVSProject('automation.vcproj',
                           dest=('$CHROME_SRC_DIR/chrome/'
                                 + 'test/automation/automation.vcproj'),
@@ skipping 27 matching lines @@
             InheritedPropertySheets=[
                 '$(SolutionDir)../build/debug.vsprops',
                 './automation.vsprops',
             ])
 
 p.AddConfig('Release|Win32',
             InheritedPropertySheets=[
                 '$(SolutionDir)../build/release.vsprops',
                 './automation.vsprops',
             ])