Store previous painting clip rects on FragmentData.

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/paint/PaintPropertyTreeBuilderTest.h"
 
 #include "core/html/HTMLIFrameElement.h"
 #include "core/layout/LayoutTreeAsText.h"
 #include "core/paint/ObjectPaintProperties.h"
 #include "core/paint/PaintPropertyTreePrinter.h"
@@ skipping 257 matching lines @@
             FrameScrollTranslation()->Matrix());
   EXPECT_EQ(FramePreTranslation(), FrameScrollTranslation()->Parent());
   EXPECT_EQ(FramePreTranslation(), FrameContentClip()->LocalTransformSpace());
   EXPECT_EQ(FloatRoundedRect(0, 0, 800, 600), FrameContentClip()->ClipRect());
   EXPECT_TRUE(FrameContentClip()->Parent()->IsRoot());
 
   if (!RuntimeEnabledFeatures::rootLayerScrollingEnabled()) {
     // No scroll properties should be present.
     EXPECT_EQ(nullptr, frame_view->GetLayoutView()->PaintProperties());
   }
+
   CHECK_EXACT_VISUAL_RECT(LayoutRect(8, 8, 784, 10000),
                           GetDocument().body()->GetLayoutObject(),
                           frame_view->GetLayoutView());
 }
 
 TEST_P(PaintPropertyTreeBuilderTest, Perspective) {
   SetBodyInnerHTML(
       "<style>"
       "  #perspective {"
       "    position: absolute;"
@@ skipping 3182 matching lines @@
 
   LayoutObject& svg_root =
       *GetDocument().getElementById("svgroot")->GetLayoutObject();
   const ObjectPaintProperties* svg_root_properties = svg_root.PaintProperties();
   EXPECT_TRUE(svg_root_properties->Effect());
   EXPECT_EQ(EffectPaintPropertyNode::Root(),
             svg_root_properties->Effect()->Parent());
 }
 
 }  // namespace blink