SkPaintFilterCanvas skip-draw support

tests/CanvasTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /*  Description:
  *      This test defines a series of elementatry test steps that perform
  *      a single or a small group of canvas API calls. Each test step is
@@ skipping 712 matching lines @@
     canvas.restore();
 }
 
 namespace {
 
 class MockFilterCanvas : public SkPaintFilterCanvas {
 public:
     MockFilterCanvas(SkCanvas* canvas) : INHERITED(canvas) { }
 
 protected:
-    void onFilterPaint(SkPaint *paint, Type type) const override { }
+    bool onFilter(const SkPaint*, Type, SkTLazy<SkPaint>*) const override { return true; }
 
 private:
     typedef SkPaintFilterCanvas INHERITED;
 };
 
 } // anonymous namespace
 
 // SkPaintFilterCanvas should inherit the initial target canvas state.
 DEF_TEST(PaintFilterCanvas_ConsistentState, reporter) {
     SkCanvas canvas(100, 100);
     canvas.clipRect(SkRect::MakeXYWH(12.7f, 12.7f, 75, 75));
     canvas.scale(0.5f, 0.75f);
 
     SkRect clip1, clip2;
 
     MockFilterCanvas filterCanvas(&canvas);
     REPORTER_ASSERT(reporter, canvas.getTotalMatrix() == filterCanvas.getTotalMatrix());
     REPORTER_ASSERT(reporter, canvas.getClipBounds(&clip1) == filterCanvas.getClipBounds(&clip2));
     REPORTER_ASSERT(reporter, clip1 == clip2);
 
     filterCanvas.clipRect(SkRect::MakeXYWH(30.5f, 30.7f, 100, 100));
     filterCanvas.scale(0.75f, 0.5f);
     REPORTER_ASSERT(reporter, canvas.getTotalMatrix() == filterCanvas.getTotalMatrix());
     REPORTER_ASSERT(reporter, canvas.getClipBounds(&clip1) == filterCanvas.getClipBounds(&clip2));
     REPORTER_ASSERT(reporter, clip1 == clip2);
 }