Adjust texture priorities in preparation of impl-thread eviction of only some textures

cc/CCPriorityCalculator.h

Index: cc/CCPriorityCalculator.h
diff --git a/cc/CCPriorityCalculator.h b/cc/CCPriorityCalculator.h
index f9007cbaae49860b45c79fc5e3fd7661e71f841b..45f2e64a649bd0944eb496d4b3395976364daf41 100644
--- a/cc/CCPriorityCalculator.h
+++ b/cc/CCPriorityCalculator.h
@@ -17,9 +17,8 @@ public:
     static int visiblePriority(bool drawsToRootSurface);
     static int renderSurfacePriority();
     static int lingeringPriority(int previousPriority);
-    int priorityFromDistance(const IntRect& visibleRect, const IntRect& textureRect, bool drawsToRootSurface) const;
-    int priorityFromDistance(unsigned pixels, bool drawsToRootSurface) const;
-    int priorityFromVisibility(bool visible, bool drawsToRootSurface) const;
+    static int priorityFromDistance(const IntRect& visibleRect, const IntRect& textureRect, bool drawsToRootSurface);
+    static int smallAnimatedLayerMinPriority();
 
     static inline int highestPriority() { return std::numeric_limits<int>::min(); }
     static inline int lowestPriority() { return std::numeric_limits<int>::max(); }