Implement SkImageFilter support in the compositor.

cc/layer_impl_unittest.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 
 #include "CCLayerImpl.h"
 
 #include "CCSingleThreadProxy.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <public/WebFilterOperation.h>
 #include <public/WebFilterOperations.h>
+#include "SkBlurImageFilter.h"
 
 using namespace cc;
 using namespace WebKit;
 
 namespace {
 
 #define EXECUTE_AND_VERIFY_SUBTREE_CHANGED(codeToTest)                  \
     root->resetAllChangeTrackingForSubtree();                           \
     codeToTest;                                                         \
     EXPECT_TRUE(root->layerPropertyChanged());                          \
@@ skipping 51 matching lines @@
     float arbitraryNumber = 0.352f;
     IntSize arbitraryIntSize = IntSize(111, 222);
     IntPoint arbitraryIntPoint = IntPoint(333, 444);
     IntRect arbitraryIntRect = IntRect(arbitraryIntPoint, arbitraryIntSize);
     FloatRect arbitraryFloatRect = FloatRect(arbitraryFloatPoint, FloatSize(1.234f, 5.678f));
     SkColor arbitraryColor = SkColorSetRGB(10, 20, 30);
     WebTransformationMatrix arbitraryTransform;
     arbitraryTransform.scale3d(0.1, 0.2, 0.3);
     WebFilterOperations arbitraryFilters;
     arbitraryFilters.append(WebFilterOperation::createOpacityFilter(0.5));
+    SkAutoTUnref<SkImageFilter> arbitraryFilter(new SkBlurImageFilter(SK_Scalar1, SK_Scalar1));
 
     // These properties are internal, and should not be considered "change" when they are used.
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUseLCDText(true));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawOpacity(arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setRenderTarget(0));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawTransform(arbitraryTransform));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScreenSpaceTransform(arbitraryTransform));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawableContentRect(arbitraryIntRect));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUpdateRect(arbitraryFloatRect));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setVisibleContentRect(arbitraryIntRect));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMaxScrollPosition(arbitraryIntSize));
 
     // Changing these properties affects the entire subtree of layers.
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPoint(arbitraryFloatPoint));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPointZ(arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilters(arbitraryFilters));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setFilter(arbitraryFilter));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMaskLayer(CCLayerImpl::create(4)));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMasksToBounds(true));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setContentsOpaque(true));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setReplicaLayer(CCLayerImpl::create(5)));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPosition(arbitraryFloatPoint));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPreserves3D(true));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setDoubleSided(false)); // constructor initializes it to "true".
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->scrollBy(arbitraryIntSize));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollDelta(IntSize()));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollPosition(arbitraryIntPoint));
@@ skipping 40 matching lines @@
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentsOpaque(true));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setOpacity(arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDebugBorderColor(arbitraryColor));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDebugBorderWidth(arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawsContent(true));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setSublayerTransform(arbitraryTransform));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setBounds(arbitraryIntSize));
 }
 
 } // namespace