The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/70cc1dad4ad07c507895e6b22995ee54faed8ffd

commit 70cc1dad4ad07c507895e6b22995ee54faed8ffd
Author: Xianzhu Wang <wangxianzhu@chromium.org>
Date: Thu Sep 28 06:19:43 2017

[SPv2] Clip composited layer bounds

1. Clip the layer bounds with the direct clip in the layer's property
   tree state if the clip is in the space of the transform in property
   tree state.
2. Clip the layer bounds with the scrolling range if the transform
   in the layer's property tree state references a scroll node.

This helps:
- to reduce layer bounds by excluding the areas that are not visible
  (while still allowing composited scrolling);
- to avoid full layer raster invalidation when layer bounds change
  outside of the visible area.

Bug:  757090 
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
Change-Id: If56cebe6e3235613bacef388f04f01c42abfdaec
Reviewed-on: https://chromium-review.googlesource.com/683249
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: Philip Rogers <pdr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#504923}
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/FlagExpectations/enable-slimming-paint-v2
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/compositing/layer-creation/fixed-position-nonscrollable-body-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/compositing/layer-creation/fixed-position-nonscrollable-body-overlap-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/absolute-position-change-containing-block-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/absolute-position-moved-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/border-radius-repaint-2-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/inline-focus-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/inline-outline-repaint-2-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/mask-clip-change-stacking-child-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/offset-change-wrong-invalidation-with-float-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/outline-change-in-scrollers-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/outline-change-scrollable-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/outline-change-vertical-rl-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/overflow-flipped-writing-mode-block-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/overflow-flipped-writing-mode-table-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/overflow-hide-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/overflow-show-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/scroll-in-clipped-layer-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/scroll-in-transformed-layer-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/scroll-with-transformed-parent-layer-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/selection/invalidation-rect-includes-newline-for-rtl-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/svg/add-outline-property-on-root-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/svg/remove-outline-property-on-root-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/transform-replaced-shadows-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/transform-rotate-and-remove-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/window-resize-no-layout-change1-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/window-resize-no-layout-change2-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/window-resize-vertical-writing-mode-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-in-scrollers-expected.html
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-in-scrollers-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-in-scrollers.html
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-scrollable-expected.html
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-scrollable-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-scrollable.html
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-vertical-rl-expected.html
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-vertical-rl-expected.txt
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/paint/invalidation/outline-change-vertical-rl.html
[add] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/LayoutTests/platform/mac/paint/invalidation/outline-change-in-scrollers-expected.txt
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/core/layout/VisualRectMappingTest.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/core/paint/BlockPainterTest.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/core/paint/PaintPropertyTreeUpdateTests.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.h
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositorTest.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/graphics/paint/ScrollPaintPropertyNode.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/graphics/paint/ScrollPaintPropertyNode.h
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/testing/TestPaintArtifact.cpp
[modify] https://crrev.com/70cc1dad4ad07c507895e6b22995ee54faed8ffd/third_party/WebKit/Source/platform/testing/TestPaintArtifact.h