Remove unused transparency display item functions.

public/platform/WebDisplayItemList.h

Index: public/platform/WebDisplayItemList.h
diff --git a/public/platform/WebDisplayItemList.h b/public/platform/WebDisplayItemList.h
index 7cb5c40e85cd133c4d0a2885677a02050397ecc3..b2921badb3807a9c6cd2d33b958029f435c5cc4a 100644
--- a/public/platform/WebDisplayItemList.h
+++ b/public/platform/WebDisplayItemList.h
@@ -18,9 +18,6 @@
 #include "third_party/skia/include/core/SkXfermode.h"
 #include "third_party/skia/include/utils/SkMatrix44.h"
 
-// FIXME: Remove this once references to this macro in chromium are removed.
-#define FILTER_DISPLAY_ITEM_USES_FILTER_OPERATIONS 1

[ajuma, 2015/02/25 14:11:34]

Thanks for cleaning this up!

-
 class SkImageFilter;
 class SkMatrix44;
 class SkPicture;
@@ -30,8 +27,8 @@ class WebFilterOperations;
 
 // An ordered list of items representing content to be rendered (stored in
 // 'drawing' items) and operations to be performed when rendering this content
-// (stored in 'clip', 'transform', 'transparency', and 'filter' items). See
-// http://dev.chromium.org/blink/slimming-paint for more details.
+// (stored in 'clip', 'transform', 'filter', etc...). For more details see:
+// http://dev.chromium.org/blink/slimming-paint.
 class WebDisplayItemList {
 public:
     virtual ~WebDisplayItemList() { }
@@ -47,8 +44,6 @@ public:
     virtual void appendEndFloatClipItem() = 0;
     virtual void appendTransformItem(const SkMatrix44&) = 0;
     virtual void appendEndTransformItem() = 0;
-    virtual void appendTransparencyItem(float opacity, WebBlendMode) = 0;
-    virtual void appendEndTransparencyItem() = 0;
     virtual void appendCompositingItem(float opacity,
         SkXfermode::Mode, SkColorFilter*) = 0;
     virtual void appendEndCompositingItem() = 0;