[EditingNG] Temporary enable NGInlineNodeDataEditor::VerifyItems()

This patch enables |NGInlineNodeDataEditor::VerifyItems()| to verify offsets in
|ShapeResult| to identify reproduce steps.

Bug: 1121885
Change-Id: I1fb1e423c134f3228cee3487e5af5ae86745437b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2376933
Commit-Queue: Yoshifumi Inoue <yosin@chromium.org>
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Auto-Submit: Yoshifumi Inoue <yosin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#801710}

third_party/blink/renderer/core/layout/ng/inline/ng_inline_node.cc

@@ -715,26 +715,26 @@ class NGInlineNodeDataEditor final {
         item->shape_result_->CopyAdjustedOffset(item->start_offset_);
   }
 
+  // TODO(yosin): Once we can reproduce invalid |ShapeResult| offsets, we
+  // should make this function works only for |DCHECK_IS_ON()|.
   void VerifyItems(const Vector<NGInlineItem>& items) const {
-#if DCHECK_IS_ON()
     unsigned last_offset = items.front().start_offset_;
     for (const NGInlineItem& item : items) {
-      DCHECK_LE(item.start_offset_, item.end_offset_);
-      DCHECK_EQ(last_offset, item.start_offset_);
+      CHECK_LE(item.start_offset_, item.end_offset_);
+      CHECK_EQ(last_offset, item.start_offset_);
       last_offset = item.end_offset_;
       if (!item.shape_result_ || item.layout_object_ != layout_text_)
         continue;
-      DCHECK_LT(item.start_offset_, item.end_offset_);
+      CHECK_LT(item.start_offset_, item.end_offset_);
       if (item.shape_result_->StartIndex() == item.start_offset_) {
-        DCHECK_LE(item.shape_result_->EndIndex(), item.end_offset_);
+        CHECK_LE(item.shape_result_->EndIndex(), item.end_offset_);
       } else {
-        DCHECK_LE(item.start_offset_, item.shape_result_->StartIndex());
-        DCHECK_EQ(item.end_offset_, item.shape_result_->EndIndex());
+        CHECK_LE(item.start_offset_, item.shape_result_->StartIndex());
+        CHECK_EQ(item.end_offset_, item.shape_result_->EndIndex());
       }
     }
-    DCHECK_EQ(last_offset,
-              block_flow_->GetNGInlineNodeData()->text_content.length());
-#endif
+    CHECK_EQ(last_offset,
+             block_flow_->GetNGInlineNodeData()->text_content.length());
   }
 
   std::unique_ptr<NGInlineNodeData> data_;