Move scroll paint property nodes to be owned by the transform tree

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

 // Copyright 2016 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/html/HTMLIFrameElement.h"
 #include "core/paint/PaintPropertyTreeBuilderTest.h"
 #include "core/paint/PaintPropertyTreePrinter.h"
 
 namespace blink {
 
@@ skipping 17 matching lines @@
       "  }"
       "</style>"
       "<div id='overflowA'>"
       "  <div class='forceScroll'></div>"
       "</div>"
       "<div class='forceScroll'></div>");
   Element* overflowA = document().getElementById("overflowA");
   EXPECT_FALSE(frameScroll()->threadedScrollingDisabled());
   EXPECT_FALSE(overflowA->layoutObject()
                    ->paintProperties()
-                   ->scroll()
+                   ->scrollTranslation()
+                   ->scrollNode()
                    ->threadedScrollingDisabled());
 
   document().settings()->setThreadedScrollingEnabled(false);
   // TODO(pdr): The main thread scrolling setting should invalidate properties.
   document().view()->setNeedsPaintPropertyUpdate();
   overflowA->layoutObject()->setNeedsPaintPropertyUpdate();
   document().view()->updateAllLifecyclePhases();
 
   EXPECT_TRUE(frameScroll()->threadedScrollingDisabled());
   EXPECT_TRUE(overflowA->layoutObject()
                   ->paintProperties()
-                  ->scroll()
+                  ->scrollTranslation()
+                  ->scrollNode()
                   ->threadedScrollingDisabled());
 }
 
 TEST_P(PaintPropertyTreeUpdateTest,
        BackgroundAttachmentFixedMainThreadScrollReasonsWithNestedScrollers) {
   setBodyInnerHTML(
       "<style>"
       "  #overflowA {"
       "    position: absolute;"
       "    overflow: scroll;"
@@ skipping 20 matching lines @@
       "  </div>"
       "  <div class='forceScroll'></div>"
       "</div>"
       "<div class='forceScroll'></div>");
   Element* overflowA = document().getElementById("overflowA");
   Element* overflowB = document().getElementById("overflowB");
 
   EXPECT_TRUE(frameScroll()->hasBackgroundAttachmentFixedDescendants());
   EXPECT_TRUE(overflowA->layoutObject()
                   ->paintProperties()
-                  ->scroll()
+                  ->scrollTranslation()
+                  ->scrollNode()
                   ->hasBackgroundAttachmentFixedDescendants());
   EXPECT_TRUE(overflowB->layoutObject()
                   ->paintProperties()
-                  ->scroll()
+                  ->scrollTranslation()
+                  ->scrollNode()
                   ->hasBackgroundAttachmentFixedDescendants());
 
   // Removing a main thread scrolling reason should update the entire tree.
   overflowB->removeAttribute("class");
   document().view()->updateAllLifecyclePhases();
   EXPECT_FALSE(frameScroll()->hasBackgroundAttachmentFixedDescendants());
   EXPECT_FALSE(overflowA->layoutObject()
                    ->paintProperties()
-                   ->scroll()
+                   ->scrollTranslation()
+                   ->scrollNode()
                    ->hasBackgroundAttachmentFixedDescendants());
   EXPECT_FALSE(overflowB->layoutObject()
                    ->paintProperties()
-                   ->scroll()
+                   ->scrollTranslation()
+                   ->scrollNode()
                    ->hasBackgroundAttachmentFixedDescendants());
 
   // Adding a main thread scrolling reason should update the entire tree.
   overflowB->setAttribute(HTMLNames::classAttr, "backgroundAttachmentFixed");
   document().view()->updateAllLifecyclePhases();
   EXPECT_TRUE(frameScroll()->hasBackgroundAttachmentFixedDescendants());
   EXPECT_TRUE(overflowA->layoutObject()
                   ->paintProperties()
-                  ->scroll()
+                  ->scrollTranslation()
+                  ->scrollNode()
                   ->hasBackgroundAttachmentFixedDescendants());
   EXPECT_TRUE(overflowB->layoutObject()
                   ->paintProperties()
-                  ->scroll()
+                  ->scrollTranslation()
+                  ->scrollNode()
                   ->hasBackgroundAttachmentFixedDescendants());
 }
 
 TEST_P(PaintPropertyTreeUpdateTest, ParentFrameMainThreadScrollReasons) {
   setBodyInnerHTML(
       "<style>"
       "  body { margin: 0; }"
       "  .fixedBackground {"
       "    background-image: url('foo');"
       "    background-attachment: fixed;"
@@ skipping 93 matching lines @@
       "  <div class='forceScroll'></div>"
       "</div>"
       "<div class='forceScroll'></div>");
   Element* overflowA = document().getElementById("overflowA");
   Element* overflowB = document().getElementById("overflowB");
 
   // This should be false. We are not as strict about main thread scrolling
   // reasons as we could be.
   EXPECT_TRUE(overflowA->layoutObject()
                   ->paintProperties()
-                  ->scroll()
+                  ->scrollTranslation()
+                  ->scrollNode()
                   ->hasBackgroundAttachmentFixedDescendants());
   EXPECT_FALSE(overflowB->layoutObject()
                    ->paintProperties()
-                   ->scroll()
+                   ->scrollTranslation()
+                   ->scrollNode()
                    ->hasBackgroundAttachmentFixedDescendants());
   EXPECT_TRUE(overflowB->layoutObject()
                   ->paintProperties()
-                  ->scroll()
+                  ->scrollTranslation()
+                  ->scrollNode()
                   ->parent()
                   ->isRoot());
 
   // Removing a main thread scrolling reason should update the entire tree.
   overflowB->removeAttribute("class");
   document().view()->updateAllLifecyclePhases();
   EXPECT_FALSE(overflowA->layoutObject()
                    ->paintProperties()
-                   ->scroll()
+                   ->scrollTranslation()
+                   ->scrollNode()
                    ->hasBackgroundAttachmentFixedDescendants());
   EXPECT_FALSE(overflowB->layoutObject()
                    ->paintProperties()
-                   ->scroll()
+                   ->scrollTranslation()
+                   ->scrollNode()
                    ->hasBackgroundAttachmentFixedDescendants());
   EXPECT_FALSE(overflowB->layoutObject()
                    ->paintProperties()
-                   ->scroll()
+                   ->scrollTranslation()
+                   ->scrollNode()
                    ->parent()
                    ->hasBackgroundAttachmentFixedDescendants());
 }
 
 TEST_P(PaintPropertyTreeUpdateTest, DescendantNeedsUpdateAcrossFrames) {
   setBodyInnerHTML(
       "<style>body { margin: 0; }</style>"
       "<div id='divWithTransform' style='transform: translate3d(1px,2px,3px);'>"
       "  <iframe style='border: 7px solid black'></iframe>"
       "</div>");
@@ skipping 359 matching lines @@
   EXPECT_EQ(TransformationMatrix().translate3d(50, 100, 0),
             transformObject->paintProperties()->transform()->matrix());
 
   transform->setAttribute(HTMLNames::styleAttr, "width: 200px; height: 300px;");
   document().view()->updateAllLifecyclePhases();
   EXPECT_EQ(TransformationMatrix().translate3d(100, 150, 0),
             transformObject->paintProperties()->transform()->matrix());
 }
 
 }  // namespace blink