Remove unused transparency display items.

cc/blink/web_display_item_list_impl.cc

Index: cc/blink/web_display_item_list_impl.cc
diff --git a/cc/blink/web_display_item_list_impl.cc b/cc/blink/web_display_item_list_impl.cc
index b1f1211333673145f50aa08e37857f184259a77e..6a4ab90d10ff6cdf24a8ae5e5ab0cfba94b78fee 100644
--- a/cc/blink/web_display_item_list_impl.cc
+++ b/cc/blink/web_display_item_list_impl.cc
@@ -15,7 +15,6 @@
 #include "cc/resources/filter_display_item.h"
 #include "cc/resources/float_clip_display_item.h"
 #include "cc/resources/transform_display_item.h"
-#include "cc/resources/transparency_display_item.h"
 #include "skia/ext/refptr.h"
 #include "third_party/WebKit/public/platform/WebFloatRect.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
@@ -85,19 +84,6 @@ void WebDisplayItemListImpl::appendEndTransformItem() {
   display_item_list_->AppendItem(cc::EndTransformDisplayItem::Create());
 }
 
-// TODO(pdr): Remove once there are no more callers.
-void WebDisplayItemListImpl::appendTransparencyItem(
-    float opacity,
-    blink::WebBlendMode blend_mode) {
-  display_item_list_->AppendItem(cc::TransparencyDisplayItem::Create(
-      opacity, BlendModeToSkia(blend_mode)));
-}
-
-// TODO(pdr): Remove once there are no more callers.
-void WebDisplayItemListImpl::appendEndTransparencyItem() {
-  display_item_list_->AppendItem(cc::EndTransparencyDisplayItem::Create());
-}
-
 // TODO(pdr): Remove this once the blink-side callers have been removed.
 void WebDisplayItemListImpl::appendCompositingItem(
     float opacity,