Tweak PaintInvalidationReasons

third_party/WebKit/Source/core/frame/FrameView.cpp

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index 92fc41da4e9b6acd0ff2bff1a01d8aa5c2561f3b..3c813d65b231d629a7c9f2b5d4b00c6361be42aa 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -1706,8 +1706,10 @@ void FrameView::ViewportSizeChanged(bool width_changed, bool height_changed) {
       // above.
       LayoutViewItem lvi = GetLayoutViewItem();
       DCHECK(!lvi.IsNull());
-      if (lvi.DocumentRect().Height() < lvi.ViewRect().Height())
-        lvi.SetShouldDoFullPaintInvalidation();
+      if (lvi.DocumentRect().Height() < lvi.ViewRect().Height()) {
+        lvi.SetShouldDoFullPaintInvalidation(
+            PaintInvalidationReason::kGeometry);
+      }
     }
   }
 
@@ -1760,8 +1762,10 @@ void FrameView::ScrollContentsIfNeededRecursive() {
 }
 
 void FrameView::InvalidateBackgroundAttachmentFixedObjects() {
-  for (const auto& layout_object : background_attachment_fixed_objects_)
-    layout_object->SetShouldDoFullPaintInvalidation();
+  for (const auto& layout_object : background_attachment_fixed_objects_) {
+    layout_object->SetShouldDoFullPaintInvalidation(
+        PaintInvalidationReason::kBackground);
+  }
 }
 
 bool FrameView::HasBackgroundAttachmentFixedDescendants(
@@ -3480,9 +3484,10 @@ void FrameView::DeprecatedInvalidateTreeRecursiveInternal() {
 
   // Process objects needing paint invalidation on the next frame. See the
   // definition of PaintInvalidationDelayedFull for more details.
-  for (auto& target : pending_delayed_paint_invalidations)
+  for (auto& target : pending_delayed_paint_invalidations) {
     target->GetMutableForPainting().SetShouldDoFullPaintInvalidation(
-        kPaintInvalidationDelayedFull);
+        PaintInvalidationReason::kDelayedFull);
+  }
 }
 
 void FrameView::EnableAutoSizeMode(const IntSize& min_size,