Add smooth scrolling command line switch for test_shell.

webkit/tools/test_shell/test_shell_main.cc

 // 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.
 
 #include "base/at_exit.h"
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/environment.h"
 #include "base/event_recorder.h"
@@ skipping 17 matching lines @@
 #include "net/url_request/url_request_context.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebScriptController.h"
 #include "ui/gfx/gl/gl_implementation.h"
 #include "ui/gfx/gl/gl_switches.h"
 #include "webkit/extensions/v8/gc_extension.h"
 #include "webkit/extensions/v8/heap_profiler_extension.h"
 #include "webkit/extensions/v8/playback_extension.h"
 #include "webkit/extensions/v8/profiler_extension.h"
 #include "webkit/glue/webkit_glue.h"
+#include "webkit/glue/webpreferences.h"
 #include "webkit/glue/window_open_disposition.h"
 #include "webkit/tools/test_shell/simple_resource_loader_bridge.h"
 #include "webkit/tools/test_shell/test_shell.h"
 #include "webkit/tools/test_shell/test_shell_platform_delegate.h"
 #include "webkit/tools/test_shell/test_shell_request_context.h"
 #include "webkit/tools/test_shell/test_shell_switches.h"
 #include "webkit/tools/test_shell/test_shell_webkit_init.h"
 
 #if defined(OS_WIN)
 #pragma warning(disable: 4996)
@@ skipping 146 matching lines @@
   // Config the modules that need access to a limited set of resources.
   net::NetModule::SetResourceProvider(TestShell::ResourceProvider);
 
   platform.InitializeGUI();
 
   TestShell::InitializeTestShell(layout_test_mode, allow_external_pages);
 
   if (parsed_command_line.HasSwitch(test_shell::kAllowScriptsToCloseWindows))
     TestShell::SetAllowScriptsToCloseWindows();
 
+  if (parsed_command_line.HasSwitch(test_shell::kEnableSmoothScrolling))
+    TestShell::GetWebPreferences()->enable_scroll_animator = true;
+
   // Disable user themes for layout tests so pixel tests are consistent.
 #if defined(OS_WIN)
   TestShellWebTheme::Engine engine;
 #endif
   if (classic_theme)
     platform.SelectUnifiedTheme();
 #if defined(OS_WIN)
   if (generic_theme)
     test_shell_webkit_init.SetThemeEngine(&engine);
 #endif
@@ skipping 122 matching lines @@
   TestShell::ShutdownTestShell();
   TestShell::CleanupLogging();
 
   // Tear down shared StatsTable; prevents unit_tests from leaking it.
   base::StatsTable::set_current(NULL);
   delete table;
   RemoveSharedMemoryFile(stats_filename);
 
   return 0;
 }