Begin removing deprecated (and now, unused) ImageFilter code paths

src/effects/SkMagnifierImageFilter.cpp

 /*
  * Copyright 2012 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.
  */
 
 #include "SkMagnifierImageFilter.h"
 
 #include "SkBitmap.h"
@@ skipping 319 matching lines @@
                                                         fSrcRect.x() / inputTexture->width(),
                                                         yOffset / inputTexture->height(),
                                                         invXZoom,
                                                         invYZoom,
                                                         bounds.width() * invInset,
                                                         bounds.height() * invInset));
         if (!fp) {
             return nullptr;
         }
 
-        return DrawWithFP(context, std::move(fp), bounds, source->internal_getProxy());
+        return DrawWithFP(context, std::move(fp), bounds);
     }
 #endif
 
     SkBitmap inputBM;
 
     if (!input->getROPixels(&inputBM)) {
         return nullptr;
     }
 
     if ((inputBM.colorType() != kN32_SkColorType) ||
@@ skipping 50 matching lines @@
             int x_val = SkTPin(bounds.x() + SkScalarFloorToInt(x_interp), 0, inputBM.width() - 1);
             int y_val = SkTPin(bounds.y() + SkScalarFloorToInt(y_interp), 0, inputBM.height() - 1);
 
             *dptr = *inputBM.getAddr32(x_val, y_val);
             dptr++;
         }
     }
 
     offset->fX = bounds.left();
     offset->fY = bounds.top();
-    return SkSpecialImage::MakeFromRaster(source->internal_getProxy(),
-                                          SkIRect::MakeWH(bounds.width(), bounds.height()),
+    return SkSpecialImage::MakeFromRaster(SkIRect::MakeWH(bounds.width(), bounds.height()),
                                           dst);
 }
 
 #ifndef SK_IGNORE_TO_STRING
 void SkMagnifierImageFilter::toString(SkString* str) const {
     str->appendf("SkMagnifierImageFilter: (");
     str->appendf("src: (%f,%f,%f,%f) ",
                  fSrcRect.fLeft, fSrcRect.fTop, fSrcRect.fRight, fSrcRect.fBottom);
     str->appendf("inset: %f", fInset);
     str->append(")");
 }
 #endif