remove avoid and pixelxor xfermodes

gm/avoidxfermode3.cpp

Index: gm/avoidxfermode3.cpp
diff --git a/gm/avoidxfermode3.cpp b/gm/avoidxfermode3.cpp
deleted file mode 100644
index a635ae47ac5cc3d3b5be8cd116cc09404e24ea15..0000000000000000000000000000000000000000
--- a/gm/avoidxfermode3.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
-* Copyright 2016 Google Inc.
-*
-* Use of this source code is governed by a BSD-style license that can be
-* found in the LICENSE file.
-*/
-
-#include "gm.h"
-
-#include "SkAvoidXfermode.h"
-
-// This GM exercises how the avoid xfer mode interacts with partial coverage
-class AvoidXfermode3GM : public skiagm::GM {
-public:
-    AvoidXfermode3GM() { }
-
-protected:
-    SkString onShortName() override {
-        return SkString("avoidxfermode3");
-    }
-
-    SkISize onISize() override { return SkISize::Make(128, 128); }
-
-    void onDraw(SkCanvas* canvas) override {
-        canvas->drawARGB(255, 0, 0, 0);
-
-        SkRect r = SkRect::MakeXYWH(16.5f, 16.5f, 96.0f, 96.0f);
-
-        SkPaint p0;
-        p0.setColor(SK_ColorWHITE);
-        p0.setAntiAlias(true);
-
-        canvas->drawRect(r, p0);
-
-        r = SkRect::MakeXYWH(3.5f, 3.5f, 59.0f, 59.0f);
-
-        // UL corner: replace white with green with a tight tolerance
-        SkPaint p1;
-        p1.setColor(SK_ColorGREEN);
-        p1.setAntiAlias(true);
-        p1.setXfermode(SkAvoidXfermode::Make(SK_ColorWHITE, 5, SkAvoidXfermode::kTargetColor_Mode));
-
-        canvas->drawRect(r, p1);
-
-        r.offsetTo(65.5f, 3.5f);
-
-        // UR corner: draw red everywhere except white with a tight tolerance
-        SkPaint p2;
-        p2.setColor(SK_ColorRED);
-        p2.setAntiAlias(true);
-        p2.setXfermode(SkAvoidXfermode::Make(SK_ColorWHITE, 250,
-                                             SkAvoidXfermode::kAvoidColor_Mode));
-
-        canvas->drawRect(r, p2);
-
-        r.offsetTo(3.5f, 65.5f);
-
-        // LL corner: replace white with blue with a loose tolerance
-        SkPaint p3;
-        p3.setColor(SK_ColorBLUE);
-        p3.setAntiAlias(true);
-        p3.setXfermode(SkAvoidXfermode::Make(SK_ColorWHITE, 250,
-                                             SkAvoidXfermode::kTargetColor_Mode));
-
-        canvas->drawRect(r, p3);
-
-        r.offsetTo(65.5f, 65.5f);
-
-        // LR corner: draw yellow everywhere except white with a loose tolerance
-        SkPaint p4;
-        p4.setColor(SK_ColorYELLOW);
-        p4.setAntiAlias(true);
-        p4.setXfermode(SkAvoidXfermode::Make(SK_ColorWHITE, 5, SkAvoidXfermode::kAvoidColor_Mode));
-
-        canvas->drawRect(r, p4);
-    }
-
-private:
-    typedef GM INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-DEF_GM(return new AvoidXfermode3GM;)