rename gradients private BitmapCache to GradientBitmapCache

src/effects/gradients/SkBitmapCache.h

-
-/*
- * Copyright 2010 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef SkBitmapCache_DEFINED
-#define SkBitmapCache_DEFINED
-
-#include "SkBitmap.h"
-
-class SkBitmapCache : SkNoncopyable {
-public:
-    SkBitmapCache(int maxEntries);
-    ~SkBitmapCache();
-
-    bool find(const void* buffer, size_t len, SkBitmap*) const;
-    void add(const void* buffer, size_t len, const SkBitmap&);
-
-private:
-    int fEntryCount;
-    const int fMaxEntries;
-
-    struct Entry;
-    mutable Entry*  fHead;
-    mutable Entry*  fTail;
-
-    inline Entry* detach(Entry*) const;
-    inline void attachToHead(Entry*) const;
-
-#ifdef SK_DEBUG
-    void validate() const;
-#else
-    void validate() const {}
-#endif
-
-    class AutoValidate : SkNoncopyable {
-    public:
-        AutoValidate(const SkBitmapCache* bc) : fBC(bc) { bc->validate(); }
-        ~AutoValidate() { fBC->validate(); }
-    private:
-        const SkBitmapCache* fBC;
-    };
-};
-
-#endif