Implement incremental paint property tree rebuilding

third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp

 // Copyright 2015 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 "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutTreeAsText.h"
 #include "core/layout/api/LayoutViewItem.h"
 #include "core/paint/ObjectPaintProperties.h"
 #include "core/paint/PaintPropertyTreePrinter.h"
 #include "platform/graphics/paint/GeometryMapper.h"
@@ skipping 2608 matching lines @@
 
   EXPECT_TRUE(frameScroll()->hasMainThreadScrollingReasons(
       MainThreadScrollingReason::kThreadedScrollingDisabled));
   EXPECT_TRUE(overflowA->layoutObject()
                   ->paintProperties()
                   ->scroll()
                   ->hasMainThreadScrollingReasons(
                       MainThreadScrollingReason::kThreadedScrollingDisabled));
 }
 
-TEST_P(PaintPropertyTreeBuilderTest,
-       BackgroundAttachmentFixedMainThreadScrollReasonsWithNestedScrollers) {
+// Disabled due to missing main thread scrolling property invalidation support.
+// See: https://crbug.com/664672
+TEST_P(
+    PaintPropertyTreeBuilderTest,
+    DISABLED_BackgroundAttachmentFixedMainThreadScrollReasonsWithNestedScrollers) {
   setBodyInnerHTML(
       "<style>"
       "  #overflowA {"
       "    position: absolute;"
       "    overflow: scroll;"
       "    width: 20px;"
       "    height: 20px;"
       "  }"
       "  #overflowB {"
       "    position: absolute;"
@@ skipping 64 matching lines @@
           ->hasMainThreadScrollingReasons(
               MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects));
   EXPECT_FALSE(
       overflowB->layoutObject()
           ->paintProperties()
           ->scroll()
           ->hasMainThreadScrollingReasons(
               MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects));
 }
 
-TEST_P(PaintPropertyTreeBuilderTest,
-       BackgroundAttachmentFixedMainThreadScrollReasonsWithFixedScroller) {
+// Disabled due to missing main thread scrolling property invalidation support.
+// See: https://crbug.com/664672
+TEST_P(
+    PaintPropertyTreeBuilderTest,
+    DISABLED_BackgroundAttachmentFixedMainThreadScrollReasonsWithFixedScroller) {
   setBodyInnerHTML(
       "<style>"
       "  #overflowA {"
       "    position: absolute;"
       "    overflow: scroll;"
       "    width: 20px;"
       "    height: 20px;"
       "  }"
       "  #overflowB {"
       "    position: fixed;"
@@ skipping 183 matching lines @@
   EXPECT_EQ(framePreTranslation(),
             childProperties->paintOffsetTranslation()->parent());
   EXPECT_EQ(childProperties->paintOffsetTranslation(),
             childPaintState.transform());
   // This will change once we added clip expansion node.
   EXPECT_EQ(filterProperties->effect()->outputClip(), childPaintState.clip());
   EXPECT_EQ(filterProperties->effect(), childPaintState.effect());
 }
 
 }  // namespace blink