Revert of Remove obsolete code that invalidates document element on LayoutView resize

third_party/WebKit/Source/core/paint/BoxPaintInvalidatorTest.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/HTMLNames.h"
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutView.h"
 #include "core/paint/PaintLayer.h"
 #include "platform/graphics/GraphicsLayer.h"
@@ skipping 220 matching lines @@
   // Resize the content.
   document().view()->setTracksPaintInvalidations(true);
   target->setAttribute(HTMLNames::styleAttr, "height: 3000px");
   document().view()->updateAllLifecyclePhases();
   if (RuntimeEnabledFeatures::rootLayerScrollingEnabled()) {
     // For now in RootLayerScrolling mode root background is invalidated and
     // painted on the container layer. No invalidation because the changed part
     // is clipped.
     // TODO(skobes): Treat LayoutView in the same way as normal objects having
     // background-attachment: local. crbug.com/568847.
-    EXPECT_FALSE(layoutView()
-                     .layer()
-                     ->graphicsLayerBacking()
-                     ->getRasterInvalidationTracking());
+    // TODO(wangxianzhu): Temporary for crbug.com/680745.
+    // EXPECT_FALSE(layoutView()
+    //                  .layer()
+    //                  ->graphicsLayerBacking()
+    //                  ->getRasterInvalidationTracking());
+    EXPECT_EQ(1u, layoutView()
+                      .layer()
+                      ->graphicsLayerBacking()
+                      ->getRasterInvalidationTracking()
+                      ->trackedRasterInvalidations.size());
   } else {
     const auto& rasterInvalidations =
         getRasterInvalidationTracking()->trackedRasterInvalidations;
-    ASSERT_EQ(1u, rasterInvalidations.size());
+    // TODO(wangxianzhu): Temporary for crbug.com/680745.
+    // ASSERT_EQ(1u, rasterInvalidations.size());
+    ASSERT_EQ(2u, rasterInvalidations.size());
     EXPECT_EQ(IntRect(0, 2000, 800, 1000), rasterInvalidations[0].rect);
     EXPECT_EQ(static_cast<const DisplayItemClient*>(&layoutView()),
               rasterInvalidations[0].client);
     EXPECT_EQ(PaintInvalidationIncremental, rasterInvalidations[0].reason);
   }
   document().view()->setTracksPaintInvalidations(false);
 
   // Resize the viewport. No paint invalidation.
   document().view()->setTracksPaintInvalidations(true);
   document().view()->resize(800, 1000);
@@ skipping 26 matching lines @@
                                           ->trackedRasterInvalidations;
     ASSERT_EQ(1u, rasterInvalidations.size());
     EXPECT_EQ(IntRect(0, 0, 800, 600), rasterInvalidations[0].rect);
     EXPECT_EQ(static_cast<const DisplayItemClient*>(&layoutView()),
               rasterInvalidations[0].client);
     EXPECT_EQ(PaintInvalidationLayoutOverflowBoxChange,
               rasterInvalidations[0].reason);
   } else {
     const auto& rasterInvalidations =
         getRasterInvalidationTracking()->trackedRasterInvalidations;
-    ASSERT_EQ(1u, rasterInvalidations.size());
+    // TODO(wangxianzhu): Temporary for crbug.com/680745.
+    // ASSERT_EQ(1u, rasterInvalidations.size());
+    ASSERT_EQ(2u, rasterInvalidations.size());
     EXPECT_EQ(IntRect(0, 0, 800, 3000), rasterInvalidations[0].rect);
     EXPECT_EQ(static_cast<const DisplayItemClient*>(&layoutView()),
               rasterInvalidations[0].client);
     EXPECT_EQ(PaintInvalidationLayoutOverflowBoxChange,
               rasterInvalidations[0].reason);
   }
   document().view()->setTracksPaintInvalidations(false);
 
   // Resize the viewport. No paint invalidation.
   document().view()->setTracksPaintInvalidations(true);
@@ skipping 20 matching lines @@
   Element* iframe = document().getElementById("iframe");
   Element* content = childDocument().getElementById("content");
   EXPECT_EQ(layoutView(),
             content->layoutObject()->containerForPaintInvalidation());
 
   // Resize the content.
   document().view()->setTracksPaintInvalidations(true);
   content->setAttribute(HTMLNames::styleAttr, "height: 500px");
   document().view()->updateAllLifecyclePhases();
   // No invalidation because the changed part of layout overflow is clipped.
-  EXPECT_FALSE(getRasterInvalidationTracking());
+  // TODO(wangxianzhu): Temporary for crbug.com/680745.
+  // EXPECT_FALSE(getRasterInvalidationTracking());
+  EXPECT_EQ(1u,
+            getRasterInvalidationTracking()->trackedRasterInvalidations.size());
   document().view()->setTracksPaintInvalidations(false);
 
   // Resize the iframe.
   document().view()->setTracksPaintInvalidations(true);
   iframe->setAttribute(HTMLNames::styleAttr, "height: 200px");
   document().view()->updateAllLifecyclePhases();
   const auto& rasterInvalidations =
       getRasterInvalidationTracking()->trackedRasterInvalidations;
   ASSERT_EQ(2u, rasterInvalidations.size());
   EXPECT_EQ(IntRect(0, 100, 100, 100), rasterInvalidations[0].rect);
@@ skipping 38 matching lines @@
   LayoutView* frameLayoutView = content->layoutObject()->view();
   EXPECT_EQ(layoutView(),
             content->layoutObject()->containerForPaintInvalidation());
 
   // Resize the content.
   document().view()->setTracksPaintInvalidations(true);
   content->setAttribute(HTMLNames::styleAttr, "height: 500px");
   document().view()->updateAllLifecyclePhases();
   const auto* rasterInvalidations =
       &getRasterInvalidationTracking()->trackedRasterInvalidations;
-  ASSERT_EQ(1u, rasterInvalidations->size());
+  // TODO(wangxianzhu): Temporary for crbug.com/680745.
+  // ASSERT_EQ(1u, rasterInvalidations->size());
+  ASSERT_EQ(2u, rasterInvalidations->size());
   EXPECT_EQ(IntRect(0, 0, 100, 100), (*rasterInvalidations)[0].rect);
   EXPECT_EQ(static_cast<const DisplayItemClient*>(frameLayoutView),
             (*rasterInvalidations)[0].client);
   EXPECT_EQ(PaintInvalidationLayoutOverflowBoxChange,
             (*rasterInvalidations)[0].reason);
   document().view()->setTracksPaintInvalidations(false);
 
   // Resize the iframe.
   document().view()->setTracksPaintInvalidations(true);
   iframe->setAttribute(HTMLNames::styleAttr, "height: 200px");
@@ skipping 157 matching lines @@
       getRasterInvalidationTracking()->trackedRasterInvalidations;
   ASSERT_EQ(1u, rasterInvalidations.size());
   EXPECT_EQ(IntRect(0, 120, 70, 120), rasterInvalidations[0].rect);
   EXPECT_EQ(static_cast<const DisplayItemClient*>(target->layoutObject()),
             rasterInvalidations[0].client);
   EXPECT_EQ(PaintInvalidationIncremental, rasterInvalidations[0].reason);
   document().view()->setTracksPaintInvalidations(false);
 }
 
 }  // namespace blink