Don't include contents visual overflow into paint invalidation rect

third_party/WebKit/Source/core/layout/VisualRectMappingTest.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/LayoutView.h"
 #include "core/layout/PaintInvalidationState.h"
 #include "core/paint/PaintLayer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 194 matching lines @@
     rect = targetOverflowRect;
     EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(container, rect));
     // 100 is the physical x location of target in container.
     EXPECT_EQ(LayoutRect(100, 0, 140, 110), rect);
     rect = targetOverflowRect;
     EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(&layoutView(), rect));
     EXPECT_EQ(LayoutRect(322, 111, 140, 110), rect);
     checkPaintInvalidationStateRectMapping(rect, targetOverflowRect, *target, layoutView(), layoutView());
 
     LayoutRect containerOverflowRect = container->localOverflowRectForPaintInvalidation();
-    EXPECT_EQ(LayoutRect(-40, 0, 240, 110), containerOverflowRect);
+    EXPECT_EQ(LayoutRect(0, 0, 200, 100), containerOverflowRect);
     rect = containerOverflowRect;
     EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(container, rect));
-    EXPECT_EQ(LayoutRect(0, 0, 240, 110), rect);
+    EXPECT_EQ(LayoutRect(0, 0, 200, 100), rect);
     rect = containerOverflowRect;
     EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    EXPECT_EQ(LayoutRect(222, 111, 240, 110), rect);
+    EXPECT_EQ(LayoutRect(222, 111, 200, 100), rect);
     checkPaintInvalidationStateRectMapping(rect, containerOverflowRect, *container, layoutView(), layoutView());
 }
 
 TEST_F(VisualRectMappingTest, ContainerOverflowScroll)
 {
     setBodyInnerHTML(
         "<div id='container' style='position: absolute; top: 111px; left: 222px;"
         "    border: 10px solid red; overflow: scroll; width: 50px; height: 80px;'>"
         "    <div id='target' style='box-shadow: 40px 20px black; width: 100px; height: 90px'></div>"
         "</div>");
@@ skipping 281 matching lines @@
     LayoutRect absoluteOverflowRect = absolute->localOverflowRectForPaintInvalidation();
     EXPECT_EQ(LayoutRect(0, 0, 50, 50), absoluteOverflowRect);
     LayoutRect rect = absoluteOverflowRect;
     EXPECT_TRUE(absolute->mapToVisualRectInAncestorSpace(stackingContext, rect));
     // -172 = top(50) - y_offset_of_stacking_context(222)
     EXPECT_EQ(LayoutRect(50, -172, 50, 50), rect);
     checkPaintInvalidationStateRectMapping(rect, absoluteOverflowRect, *absolute, layoutView(), *stackingContext);
 }
 
 } // namespace blink