Remove unused include and always-true compile-time check

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 776e47ab7a6d12f68602814433a7d2b323a2e636..f0b652948673e12cc38edd30be2f1eb5f9efb1da 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -67,7 +67,6 @@
 #include "net/base/net_util.h"
 #include "net/base/network_change_notifier.h"
 #include "net/url_request/url_request_context_getter.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 #include "ui/base/layout.h"
 #include "ui/base/ui_base_switches.h"
@@ -598,15 +597,6 @@ WebPreferences WebContentsImpl::GetWebkitPrefs(RenderViewHost* rvh,
     prefs.accelerated_2d_canvas_enabled = false;
   }
 
-#if !defined(WEBCOMPOSITOR_OWNS_SETTINGS)
-  prefs.threaded_animation_enabled =
-      !command_line.HasSwitch(switches::kDisableThreadedAnimation);
-  prefs.per_tile_painting_enabled =
-      command_line.HasSwitch(switches::kEnablePerTilePainting);
-  prefs.partial_swap_enabled =
-      command_line.HasSwitch(switches::kEnablePartialSwap);
-#endif
-
   if (command_line.HasSwitch(switches::kDefaultTileWidth))
     prefs.default_tile_width =
         GetSwitchValueAsInt(command_line, switches::kDefaultTileWidth, 1);