Add smooth scrolling command line switch for test_shell.

webkit/tools/test_shell/test_shell.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
 #undef LOG
 
 #include "webkit/tools/test_shell/test_shell.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/debug/debug_on_start_win.h"
@@ skipping 346 matching lines @@
             accelerated_compositing_enabled_;
         // Allow those layout tests running as local files, i.e. under
         // LayoutTests/http/tests/local, to access http server.
         if (layout_test_mode_)
           web_prefs_->allow_universal_access_from_file_urls = true;
         web_prefs_->visual_word_movement_enabled = false;
     }
 }
 
 // static
+WebPreferences* TestShell::GetWebPreferences() {
+  DCHECK(web_prefs_);
+  return web_prefs_;
+}
+
+// static
 bool TestShell::RemoveWindowFromList(gfx::NativeWindow window) {
   WindowList::iterator entry =
       std::find(TestShell::windowList()->begin(),
                 TestShell::windowList()->end(),
                 window);
   if (entry != TestShell::windowList()->end()) {
     TestShell::windowList()->erase(entry);
     return true;
   }
 
@@ skipping 221 matching lines @@
   return device_orientation_client_mock_.get();
 }
 
 WebKit::WebGeolocationClientMock* TestShell::geolocation_client_mock() {
   if (!geolocation_client_mock_.get()) {
     geolocation_client_mock_.reset(
         WebKit::WebGeolocationClientMock::create());
   }
   return geolocation_client_mock_.get();
 }