Move headers used by headers in include/ to include/private.

src/core/SkPathPriv.h

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkPathPriv_DEFINED
-#define SkPathPriv_DEFINED
-
-#include "SkPath.h"
-
-class SkPathPriv {
-public:
-    enum FirstDirection {
-        kCW_FirstDirection,         // == SkPath::kCW_Direction
-        kCCW_FirstDirection,        // == SkPath::kCCW_Direction
-        kUnknown_FirstDirection,
-    };
-
-    static FirstDirection AsFirstDirection(SkPath::Direction dir) {
-        // since we agree numerically for the values in Direction, we can just cast.
-        return (FirstDirection)dir;
-    }
-
-    /**
-     *  Return the opposite of the specified direction. kUnknown is its own
-     *  opposite.
-     */
-    static FirstDirection OppositeFirstDirection(FirstDirection dir) {
-        static const FirstDirection gOppositeDir[] = {
-            kCCW_FirstDirection, kCW_FirstDirection, kUnknown_FirstDirection, 
-        };
-        return gOppositeDir[dir];
-    }
-
-    /**
-     *  Tries to quickly compute the direction of the first non-degenerate
-     *  contour. If it can be computed, return true and set dir to that
-     *  direction. If it cannot be (quickly) determined, return false and ignore
-     *  the dir parameter. If the direction was determined, it is cached to make
-     *  subsequent calls return quickly.
-     */
-    static bool CheapComputeFirstDirection(const SkPath&, FirstDirection* dir);
-
-    /**
-     *  Returns true if the path's direction can be computed via
-     *  cheapComputDirection() and if that computed direction matches the
-     *  specified direction. If dir is kUnknown, returns true if the direction
-     *  cannot be computed.
-     */
-    static bool CheapIsFirstDirection(const SkPath& path, FirstDirection dir) {
-        FirstDirection computedDir = kUnknown_FirstDirection;
-        (void)CheapComputeFirstDirection(path, &computedDir);
-        return computedDir == dir;
-    }
-
-    static bool LastVerbIsClose(const SkPath& path) {
-        int count = path.countVerbs();
-        return count >= 1 && path.fPathRef->verbs()[~(count - 1)] == SkPath::Verb::kClose_Verb;
-    }
-};
-
-#endif