Revert "Handle direction control in compositor Animations"

public/platform/WebAnimation.h

Index: public/platform/WebAnimation.h
diff --git a/public/platform/WebAnimation.h b/public/platform/WebAnimation.h
index 95e028c36f472ac2baa0f45220b251bcbf4e95c7..e955390903c0151950a0c36551c12207b98c0b46 100644
--- a/public/platform/WebAnimation.h
+++ b/public/platform/WebAnimation.h
@@ -33,8 +33,6 @@
 #include "wtf/Forward.h"
 #endif
 
-#define WEB_ANIMATION_SUPPORTS_FULL_DIRECTION 1
-
 namespace WebCore {
 class CCActiveAnimation;
 }
@@ -52,13 +50,6 @@ public:
         TargetPropertyFilter
     };
 
-    enum Direction {
-        DirectionNormal = 0,
-        DirectionReverse,
-        DirectionAlternate,
-        DirectionAlternateReverse
-    };
-
     virtual ~WebAnimation() { }
 
     // An id is effectively the animation's name, and it is not unique.
@@ -79,8 +70,8 @@ public:
     virtual void setTimeOffset(double monotonicTime) = 0;
 
     // If alternatesDirection is true, on odd numbered iterations we reverse the curve.
-    virtual Direction direction() const = 0;
-    virtual void setDirection(Direction) = 0;
+    virtual bool alternatesDirection() const = 0;
+    virtual void setAlternatesDirection(bool) = 0;
 };
 
 } // namespace blink