Remove #ifs related to WebDisplayItemList

cc/blink/web_display_item_list_impl.h

Index: cc/blink/web_display_item_list_impl.h
diff --git a/cc/blink/web_display_item_list_impl.h b/cc/blink/web_display_item_list_impl.h
index 5d55810fdea1354c2ef428b056adf41d5dc0745b..28fd472be39e56568fcdaacb89512987df070963 100644
--- a/cc/blink/web_display_item_list_impl.h
+++ b/cc/blink/web_display_item_list_impl.h
@@ -10,13 +10,10 @@
 #include "cc/resources/display_item_list.h"
 #include "third_party/WebKit/public/platform/WebBlendMode.h"
 #include "third_party/WebKit/public/platform/WebContentLayerClient.h"
+#include "third_party/WebKit/public/platform/WebDisplayItemList.h"
 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 
-#if WEB_DISPLAY_ITEM_LIST_IS_DEFINED
-#include "third_party/WebKit/public/platform/WebDisplayItemList.h"
-#endif
-
 class SkImageFilter;
 class SkMatrix44;
 class SkPicture;
@@ -24,12 +21,7 @@ class SkRRect;
 
 namespace cc_blink {
 
-#if WEB_DISPLAY_ITEM_LIST_IS_DEFINED
 class WebDisplayItemListImpl : public blink::WebDisplayItemList {
-#else
-class WebDisplayItemListImpl {
-#endif
-
  public:
   CC_BLINK_EXPORT WebDisplayItemListImpl();
   virtual ~WebDisplayItemListImpl();