Revert of r10943.

src/core/SkDeviceLooper.h

Index: src/core/SkDeviceLooper.h
===================================================================
--- src/core/SkDeviceLooper.h	(revision 10943)
+++ src/core/SkDeviceLooper.h	(working copy)
@@ -1,69 +0,0 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkDeviceLooper_DEFINED
-#define SkDeviceLooper_DEFINED
-
-#include "SkBitmap.h"
-#include "SkMatrix.h"
-#include "SkRasterClip.h"
-
-class SkDeviceLooper {
-public:
-    SkDeviceLooper(const SkBitmap& base, const SkRasterClip&,
-                   const SkIRect& bounds, bool aa);
-    ~SkDeviceLooper();
-
-    const SkBitmap& getBitmap() const {
-        SkASSERT(kDone_State != fState);
-        return *fCurrBitmap;
-    }
-
-    const SkRasterClip& getRC() const {
-        SkASSERT(kDone_State != fState);
-        return *fCurrRC;
-    }
-
-    void mapRect(SkRect* dst, const SkRect& src) const;
-    void mapMatrix(SkMatrix* dst, const SkMatrix& src) const;
-
-    bool next();
-
-private:
-    const SkBitmap&     fBaseBitmap;
-    const SkRasterClip& fBaseRC;
-
-    enum State {
-        kDone_State,    // iteration is complete, getters will assert
-        kSimple_State,  // no translate/clip mods needed
-        kComplex_State
-    };
-
-    // storage for our tiled versions. Perhaps could use SkTLazy
-    SkBitmap            fSubsetBitmap;
-    SkRasterClip        fSubsetRC;
-
-    const SkBitmap*     fCurrBitmap;
-    const SkRasterClip* fCurrRC;
-    SkIRect             fClippedBounds;
-    SkIPoint            fCurrOffset;
-    int                 fDelta;
-    State               fState;
-
-    enum Delta {
-        kBW_Delta = 1 << 14,        // 16K, gives room to spare for fixedpoint
-        kAA_Delta = kBW_Delta >> 2  // supersample 4x
-    };
-
-    bool fitsInDelta(const SkIRect& r) const {
-        return r.right() < fDelta && r.bottom() < fDelta;
-    }
-    
-    bool computeCurrBitmapAndClip();
-};
-
-#endif