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 5cbac731862db7eb7ded1e0a76e17c21c83e314a..56507cacca74ac40936a24c70bde15986ab84d73 100644
--- a/cc/blink/web_display_item_list_impl.cc
+++ b/cc/blink/web_display_item_list_impl.cc
@@ -85,19 +85,6 @@ 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(

[ajuma, 2015/02/25 14:16:01]

I believe this is the only caller of cc::TransparencyDisplayItem::Create, so
cc/resources/transparency_display_item.{h, cc} can be deleted altogether now.
Feel free to either do that here, or I can take care of it in a follow-up.

-      opacity, BlendModeToSkia(blend_mode)));
-}
-
-// TODO(pdr): Remove once there are no more callers.
-void WebDisplayItemListImpl::appendEndTransparencyItem() {
-  display_item_list_->AppendItem(cc::EndTransparencyDisplayItem::Create());
-}
-
 void WebDisplayItemListImpl::appendCompositingItem(
     float opacity,
     SkXfermode::Mode xfermode,