Fix CSS reference filters with negative transformed children.

cc/playback/display_item_list_unittest.cc

 // Copyright 2014 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 "cc/playback/display_item_list.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 461 matching lines @@
   // involve |src| at all. Incorrectly assuming such a relationship (e.g. by
   // translating |dst| after it is computed by computeFastBounds, rather than
   // translating |src| before it provided to computedFastBounds) can cause
   // incorrect clipping of filter output. To test for this, we include an
   // SkImageSource filter in |filters|. Here, |src| is |filter_bounds|, defined
   // below.
   sk_sp<SkImageFilter> image_filter = SkImageSource::Make(source_image);
   filters.Append(FilterOperation::CreateReferenceFilter(image_filter));
   filters.Append(FilterOperation::CreateBrightnessFilter(0.5f));
   gfx::RectF filter_bounds(10.f, 10.f, 50.f, 50.f);
-  list->CreateAndAppendPairedBeginItem<FilterDisplayItem>(filters,
-                                                          filter_bounds);
+  list->CreateAndAppendPairedBeginItem<FilterDisplayItem>(
+      filters, filter_bounds, filter_bounds.origin());
 
   // Include a rect drawing so that filter is actually applied to something.
   {
     SkPictureRecorder recorder;
     sk_sp<SkCanvas> canvas;
 
     SkPaint red_paint;
     red_paint.setColor(SK_ColorRED);
 
     canvas = sk_ref_sp(recorder.beginRecording(
@@ skipping 426 matching lines @@
   EXPECT_RECT_EQ(merged_drawing_bounds, list->VisualRectForTesting(5));
 }
 
 TEST(DisplayItemListTest, AppendVisualRectOneFilterNoDrawings) {
   scoped_refptr<DisplayItemList> list = CreateDefaultList();
 
   // One filter containing no drawings: Bf, Ef
 
   gfx::Rect filter_bounds(5, 6, 1, 1);
   list->CreateAndAppendPairedBeginItemWithVisualRect<FilterDisplayItem>(
-      filter_bounds, FilterOperations(), gfx::RectF(filter_bounds));
+      filter_bounds, FilterOperations(), gfx::RectF(filter_bounds),
+      gfx::PointF(filter_bounds.origin()));
 
   list->CreateAndAppendPairedEndItem<EndFilterDisplayItem>();
 
   EXPECT_EQ(2u, list->size());
   EXPECT_RECT_EQ(filter_bounds, list->VisualRectForTesting(0));
   EXPECT_RECT_EQ(filter_bounds, list->VisualRectForTesting(1));
 }
 
 TEST(DisplayItemListTest, AppendVisualRectBlockContainingFilterNoDrawings) {
   scoped_refptr<DisplayItemList> list = CreateDefaultList();
 
   // One block containing one filter and no drawings: B1, Bf, Ef, E1.
 
   gfx::Rect clip_bounds(5, 6, 7, 8);
   list->CreateAndAppendPairedBeginItem<ClipDisplayItem>(
       clip_bounds, std::vector<SkRRect>(), true);
 
   gfx::Rect filter_bounds(5, 6, 1, 1);
   list->CreateAndAppendPairedBeginItemWithVisualRect<FilterDisplayItem>(
-      filter_bounds, FilterOperations(), gfx::RectF(filter_bounds));
+      filter_bounds, FilterOperations(), gfx::RectF(filter_bounds),
+      gfx::PointF(filter_bounds.origin()));
 
   list->CreateAndAppendPairedEndItem<EndFilterDisplayItem>();
   list->CreateAndAppendPairedEndItem<EndClipDisplayItem>();
 
   EXPECT_EQ(4u, list->size());
   EXPECT_RECT_EQ(filter_bounds, list->VisualRectForTesting(0));
   EXPECT_RECT_EQ(filter_bounds, list->VisualRectForTesting(1));
   EXPECT_RECT_EQ(filter_bounds, list->VisualRectForTesting(2));
   EXPECT_RECT_EQ(filter_bounds, list->VisualRectForTesting(3));
 }
 
 }  // namespace cc