The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fbeebf2905898067b4def80b945aacabe9d413e9

commit fbeebf2905898067b4def80b945aacabe9d413e9
Author: fs <fs@opera.com>
Date: Thu Sep 22 09:34:15 2016

Harmonize FilterEffect::mapRect and mapPaintRect

This CL terminates the FilterEffect::determineAbsolutePaintRect codepath,
replacing the last user (SVGFilterPainter) with mapRect().
A new structure for FilterEffect::mapRect is introduced (taking some
hints from the SkImageFilter implementation), where mapRect is the entry-
point (replacing mapRectRecursive), which in turn calls: 1) mapInputs,
2) mapEffect and 3) applyBounds. The last simply applies any clip bounds
set on the effect, while also adjusting for affectsTransparentPixels().
mapInputs() computes the contribution from inputs to the current effect,
while mapEffect() applies the contribution from the current effect
itself. The notion of forward/reverse is not retained since only forward
mapping is used.

BUG= 642035 ,  640264 ,  611674 ,  600430 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2341923002
Cr-Commit-Position: refs/heads/master@{#420293}

[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-1-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-1-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-1.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-2-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-2-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-2.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-3-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-3-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-3.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-4-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-4-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-4.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-5-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-5-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-5.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-6-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-6-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-composite-6.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-displacement-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-displacement-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-displacement.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-gaussianblur-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-gaussianblur-xonly-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-gaussianblur-xonly.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-gaussianblur-yonly-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-gaussianblur-yonly.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-gaussianblur.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-lighting-expected.html
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-lighting-expected.txt
[add] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-lighting.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-merge-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-merge-expected.txt
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-merge.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-morphology-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-morphology-xonly-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-morphology-xonly.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-morphology-yonly-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-morphology-yonly.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-morphology.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-offset-expected.html
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/paint/invalidation/filters/effect-reference-repaint-offset-expected.txt
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[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/linux/css3/filters/filter-repaint-feimage-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/linux/css3/filters/filter-repaint-turbulence-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/mac/css3/filters/effect-reference-hidpi-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/mac/css3/filters/filter-repaint-feimage-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/mac/css3/filters/filter-repaint-turbulence-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/win/css3/filters/effect-reference-hidpi-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/win/css3/filters/filter-repaint-feimage-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/LayoutTests/platform/win/css3/filters/filter-repaint-turbulence-expected.png
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/core/paint/SVGFilterPainter.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/core/svg/graphics/filters/SVGFEImage.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/core/svg/graphics/filters/SVGFEImage.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEBoxReflect.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEBoxReflect.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEComposite.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEComposite.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEConvolveMatrix.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEConvolveMatrix.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEDisplacementMap.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEDisplacementMap.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEDropShadow.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEDropShadow.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEGaussianBlur.cpp
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[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FELighting.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FELighting.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEMorphology.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEMorphology.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEOffset.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FEOffset.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FETile.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FETile.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FilterEffect.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FilterEffect.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/FilterOperation.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/SourceAlpha.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/SourceAlpha.h
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/SourceGraphic.cpp
[modify] https://crrev.com/fbeebf2905898067b4def80b945aacabe9d413e9/third_party/WebKit/Source/platform/graphics/filters/SourceGraphic.h

mapPaintRect is now gone, so we probably resolve this in favor of more specific mapping issues.