Revert of Skia Filter Quality and Scaling Metrics

include/core/SkDevice.h

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDevice_DEFINED
 #define SkDevice_DEFINED
 
@@ skipping 358 matching lines @@
      *  a device that it knows how to draw, and that it knows how to identify if it is not of the
      *  same subclass (since drawDevice is passed a SkBaseDevice*). If the subclass cannot fulfill
      *  that contract (e.g. PDF cannot support some settings on the paint) it should return NULL,
      *  and the caller may then decide to explicitly create a bitmapdevice, knowing that later
      *  it could not call drawDevice with it (but it could call drawSprite or drawBitmap).
      */
     virtual SkBaseDevice* onCreateDevice(const CreateInfo&, const SkPaint*) {
         return NULL;
     }
 
-    // A helper function used by derived classes to log the scale factor of a bitmap or image draw.
-    static void LogDrawScaleFactor(const SkMatrix&, SkFilterQuality);
-
 private:
     friend class SkCanvas;
     friend struct DeviceCM; //for setMatrixClip
     friend class SkDraw;
     friend class SkDrawIter;
     friend class SkDeviceFilteredPaint;
     friend class SkImageFilter::DeviceProxy;
     friend class SkNoPixelsBitmapDevice;
     friend class SkSurface_Raster;
 
@@ skipping 24 matching lines @@
     SkSurfaceProps fSurfaceProps;
 
 #ifdef SK_DEBUG
     bool        fAttachedToCanvas;
 #endif
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif