Simplify RenderLayer's handling of filters.

sky/engine/platform/graphics/filters/ImageFilterBuilderTest.cpp

Index: sky/engine/platform/graphics/filters/ImageFilterBuilderTest.cpp
diff --git a/sky/engine/platform/graphics/filters/ImageFilterBuilderTest.cpp b/sky/engine/platform/graphics/filters/ImageFilterBuilderTest.cpp
deleted file mode 100644
index eea698e553bdfa52b38ec90f30731fca03d204bb..0000000000000000000000000000000000000000
--- a/sky/engine/platform/graphics/filters/ImageFilterBuilderTest.cpp
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "sky/engine/config.h"
-
-#include <gtest/gtest.h>
-#include "sky/engine/platform/graphics/filters/FEBlend.h"
-#include "sky/engine/platform/graphics/filters/FEGaussianBlur.h"
-#include "sky/engine/platform/graphics/filters/FEMerge.h"
-#include "sky/engine/platform/graphics/filters/FilterOperations.h"
-#include "sky/engine/platform/graphics/filters/ReferenceFilter.h"
-#include "sky/engine/platform/graphics/filters/SkiaImageFilterBuilder.h"
-#include "sky/engine/platform/graphics/filters/SourceGraphic.h"
-#include "third_party/skia/include/core/SkImageFilter.h"
-
-using testing::Test;
-using namespace blink;
-
-class ImageFilterBuilderTest : public Test {
-protected:
-    void colorSpaceTest()
-    {
-        // Build filter tree
-        RefPtr<ReferenceFilter> referenceFilter = ReferenceFilter::create();
-
-        // Add a dummy source graphic input
-        RefPtr<FilterEffect> sourceEffect = referenceFilter->sourceGraphic();
-        sourceEffect->setOperatingColorSpace(ColorSpaceDeviceRGB);
-
-        // Add a blur effect (with input : source)
-        RefPtr<FilterEffect> blurEffect =
-            FEGaussianBlur::create(referenceFilter.get(), 3.0f, 3.0f);
-        blurEffect->setOperatingColorSpace(ColorSpaceLinearRGB);
-        blurEffect->inputEffects().append(sourceEffect);
-
-        // Add a blend effect (with inputs : blur, source)
-        RefPtr<FilterEffect> blendEffect =
-            FEBlend::create(referenceFilter.get(), WebBlendModeNormal);
-        blendEffect->setOperatingColorSpace(ColorSpaceDeviceRGB);
-        FilterEffectVector& blendInputs = blendEffect->inputEffects();
-        blendInputs.reserveCapacity(2);
-        blendInputs.append(sourceEffect);
-        blendInputs.append(blurEffect);
-
-        // Add a merge effect (with inputs : blur, blend)
-        RefPtr<FilterEffect> mergeEffect = FEMerge::create(referenceFilter.get());
-        mergeEffect->setOperatingColorSpace(ColorSpaceLinearRGB);
-        FilterEffectVector& mergeInputs = mergeEffect->inputEffects();
-        mergeInputs.reserveCapacity(2);
-        mergeInputs.append(blurEffect);
-        mergeInputs.append(blendEffect);
-        referenceFilter->setLastEffect(mergeEffect);
-
-        // Get SkImageFilter resulting tree
-        SkiaImageFilterBuilder builder;
-        RefPtr<SkImageFilter> filter = builder.build(referenceFilter->lastEffect(), ColorSpaceDeviceRGB);
-
-        // Let's check that the resulting tree looks like this :
-        //      ColorSpace (Linear->Device) : CS (L->D)
-        //                |
-        //             Merge (L)
-        //              |     |
-        //              |    CS (D->L)
-        //              |          |
-        //              |      Blend (D)
-        //              |       /    |
-        //              |  CS (L->D) |
-        //              |  /         |
-        //             Blur (L)      |
-        //                 \         |
-        //               CS (D->L)   |
-        //                   \       |
-        //                 Source Graphic (D)
-
-        EXPECT_EQ(filter->countInputs(), 1); // Should be CS (L->D)
-        SkImageFilter* child = filter->getInput(0); // Should be Merge
-        EXPECT_EQ(child->asColorFilter(0), false);
-        EXPECT_EQ(child->countInputs(), 2);
-        child = child->getInput(1); // Should be CS (D->L)
-        EXPECT_EQ(child->asColorFilter(0), true);
-        EXPECT_EQ(child->countInputs(), 1);
-        child = child->getInput(0); // Should be Blend
-        EXPECT_EQ(child->asColorFilter(0), false);
-        EXPECT_EQ(child->countInputs(), 2);
-        child = child->getInput(0); // Should be CS (L->D)
-        EXPECT_EQ(child->asColorFilter(0), true);
-        EXPECT_EQ(child->countInputs(), 1);
-        child = child->getInput(0); // Should be Blur
-        EXPECT_EQ(child->asColorFilter(0), false);
-        EXPECT_EQ(child->countInputs(), 1);
-        child = child->getInput(0); // Should be CS (D->L)
-        EXPECT_EQ(child->asColorFilter(0), true);
-        EXPECT_EQ(child->countInputs(), 1);
-    }
-};
-
-namespace {
-
-TEST_F(ImageFilterBuilderTest, testColorSpace)
-{
-    colorSpaceTest();
-}
-
-} // namespace