Remove currently unused code

src/core/SkOffsetTable.h

-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkOffsetTable_DEFINED
-#define SkOffsetTable_DEFINED
-
-#include "SkRefCnt.h"
-#include "SkTDArray.h"
-
-// A 2D table of skp offsets. Each row is indexed by an int. This is used
-// to store the command offsets that reference a particular bitmap using
-// the bitmap's index in the bitmap heap as the 'id' here. It has to be
-// ref-countable so SkPicturePlayback can take ownership of it.
-// Note that this class assumes that the ids are densely packed.
-
-// TODO: This needs to be sped up. We could replace the offset table with
-// a hash table.
-class SkOffsetTable : public SkRefCnt {
-public:
-    SkOffsetTable() {}
-    ~SkOffsetTable() {
-        fOffsetArrays.deleteAll();
-    }
-
-    // Record that this 'id' is used by the command starting at this 'offset'.
-    // Offsets for a given 'id' should always be added in increasing order.
-    void add(int id, size_t offset) {
-        if (id >= fOffsetArrays.count()) {
-            int oldCount = fOffsetArrays.count();
-            fOffsetArrays.setCount(id+1);
-            for (int i = oldCount; i <= id; ++i) {
-                fOffsetArrays[i] = NULL;
-            }
-        }
-
-        if (NULL == fOffsetArrays[id]) {
-            fOffsetArrays[id] = SkNEW(OffsetArray);
-        }
-        fOffsetArrays[id]->add(offset);
-    }
-
-    int numIDs() const {
-        return fOffsetArrays.count();
-    }
-
-    // Do the offsets of any commands referencing this ID fall in the
-    // range [min, max] (both inclusive)
-    bool overlap(int id, size_t min, size_t max) {
-        SkASSERT(id < fOffsetArrays.count());
-
-        if (NULL == fOffsetArrays[id]) {
-            return false;
-        }
-
-        // If this id has an offset array it should have at least one use
-        SkASSERT(fOffsetArrays[id]->count() > 0);
-        if (max < fOffsetArrays[id]->min() || min > fOffsetArrays[id]->max()) {
-            return false;
-        }
-
-        return true;
-    }
-
-    bool includes(int id, size_t offset) {
-        SkASSERT(id < fOffsetArrays.count());
-
-        OffsetArray* array = fOffsetArrays[id];
-
-        for (int i = 0; i < array->fOffsets.count(); ++i) {
-            if (array->fOffsets[i] == offset) {
-                return true;
-            } else if (array->fOffsets[i] > offset) {
-                return false;
-            }
-        }
-
-        // Calls to 'includes' should be gaurded by an overlap() call, so we
-        // should always find something.
-        SkASSERT(0);
-        return false;
-    }
-
-protected:
-    class OffsetArray {
-    public:
-        void add(size_t offset) {
-            SkASSERT(fOffsets.count() == 0 || offset > this->max());
-            *fOffsets.append() = offset;
-        }
-        size_t min() const {
-            SkASSERT(fOffsets.count() > 0);
-            return fOffsets[0];
-        }
-        size_t max() const {
-            SkASSERT(fOffsets.count() > 0);
-            return fOffsets[fOffsets.count()-1];
-        }
-        int count() const {
-            return fOffsets.count();
-        }
-
-        SkTDArray<size_t> fOffsets;
-    };
-
-    SkTDArray<OffsetArray*> fOffsetArrays;
-
-private:
-    typedef SkRefCnt INHERITED;
-};
-
-#endif