Add SK_SUPPORT_LEGACY_DRAWFILTER guard around calls to SkCanvas::(get|set)DrawFilter.

tests/CanvasStateTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "CanvasStateHelpers.h"
 #include "SkCanvas.h"
 #include "SkCanvasStateUtils.h"
@@ skipping 234 matching lines @@
     // now we memcmp the two bitmaps
     REPORTER_ASSERT(reporter, bitmaps[0].getSize() == bitmaps[1].getSize());
     REPORTER_ASSERT(reporter, !memcmp(bitmaps[0].getPixels(),
                                       bitmaps[1].getPixels(),
                                       bitmaps[0].getSize()));
 }
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
 
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
+
 class TestDrawFilter : public SkDrawFilter {
 public:
     bool filter(SkPaint*, Type) override { return true; }
 };
 
 DEF_TEST(CanvasState_test_draw_filters, reporter) {
     TestDrawFilter drawFilter;
     SkBitmap bitmap;
     bitmap.allocN32Pixels(10, 10);
     SkCanvas canvas(bitmap);
 
     canvas.setDrawFilter(&drawFilter);
 
     SkCanvasState* state = SkCanvasStateUtils::CaptureCanvasState(&canvas);
     REPORTER_ASSERT(reporter, state);
     SkCanvas* tmpCanvas = SkCanvasStateUtils::CreateFromCanvasState(state);
     REPORTER_ASSERT(reporter, tmpCanvas);
 
     REPORTER_ASSERT(reporter, canvas.getDrawFilter());
     REPORTER_ASSERT(reporter, nullptr == tmpCanvas->getDrawFilter());
 
     tmpCanvas->unref();
     SkCanvasStateUtils::ReleaseCanvasState(state);
 }
 
+#endif
+
 ////////////////////////////////////////////////////////////////////////////////
 
 // we need this function to prevent SkError from printing to stdout
 static void error_callback(SkError code, void* ctx) {}
 
 DEF_TEST(CanvasState_test_soft_clips, reporter) {
     SkBitmap bitmap;
     bitmap.allocN32Pixels(10, 10);
     SkCanvas canvas(bitmap);
 
@@ skipping 45 matching lines @@
     // Check that saveLayer with the kClipToLayer_SaveFlag sets the clip
     // stack to the layer bounds.
     canvas.saveLayer(&bounds, nullptr, SkCanvas::kARGB_ClipLayer_SaveFlag);
     canvas.getClipStack()->getBounds(&clipStackBounds, &boundsType);
     REPORTER_ASSERT(reporter, clipStackBounds.width() == LAYER_WIDTH);
     REPORTER_ASSERT(reporter, clipStackBounds.height() == LAYER_HEIGHT);
 
     canvas.restore();
 }
 #endif