Convert GrClip to an abstract base class

src/effects/SkLightingImageFilter.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 "SkLightingImageFilter.h"
 #include "SkBitmap.h"
 #include "SkColorPriv.h"
@@ skipping 397 matching lines @@
     SkASSERT(inputTexture);
 
     sk_sp<GrDrawContext> drawContext(context->newDrawContext(SkBackingFit::kApprox,
                                                              offsetBounds.width(),
                                                              offsetBounds.height(),
                                                              kRGBA_8888_GrPixelConfig));
     if (!drawContext) {
         return nullptr;
     }
 
-    SkRect dstRect = SkRect::MakeWH(SkIntToScalar(offsetBounds.width()),
-                                    SkIntToScalar(offsetBounds.height()));
+    SkIRect dstIRect = SkIRect::MakeWH(offsetBounds.width(), offsetBounds.height());
+    SkRect dstRect = SkRect::Make(dstIRect);
 
     // setup new clip
-    GrClip clip(dstRect);
+    GrFixedClip clip(dstIRect);
 
     const SkIRect inputBounds = SkIRect::MakeWH(input->width(), input->height());
     SkRect topLeft = SkRect::MakeXYWH(0, 0, 1, 1);
     SkRect top = SkRect::MakeXYWH(1, 0, dstRect.width() - 2, 1);
     SkRect topRight = SkRect::MakeXYWH(dstRect.width() - 1, 0, 1, 1);
     SkRect left = SkRect::MakeXYWH(0, 1, 1, dstRect.height() - 2);
     SkRect interior = dstRect.makeInset(1, 1);
     SkRect right = SkRect::MakeXYWH(dstRect.width() - 1, 1, 1, dstRect.height() - 2);
     SkRect bottomLeft = SkRect::MakeXYWH(0, dstRect.height() - 1, 1, 1);
     SkRect bottom = SkRect::MakeXYWH(1, dstRect.height() - 1, dstRect.width() - 2, 1);
@@ skipping 1730 matching lines @@
 
     fragBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight);
 }
 
 #endif
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END