[WIP][b:eae_mywip_paint] Paint Selection NG.

third_party/WebKit/Source/core/layout/ng/inline/ng_inline_items_builder.cc

Index: third_party/WebKit/Source/core/layout/ng/inline/ng_inline_items_builder.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_items_builder.cc b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_items_builder.cc
index 1038485901038a4a211dbd51b71fa06440c5c91e..c1d2beac900fc15d9ae342744df22c62571156c9 100644
--- a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_items_builder.cc
+++ b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_items_builder.cc
@@ -157,9 +157,12 @@ void NGInlineItemsBuilder::AppendWithWhiteSpaceCollapsing(
         return;
       }
 
-      if (last_collapsible_space_ == CollapsibleSpace::kNone)
+      if (last_collapsible_space_ == CollapsibleSpace::kNone) {
         text_.Append(kSpaceCharacter);
+      }
       last_collapsible_space_ = CollapsibleSpace::kNewline;
+      if (offset_mapping_)
+        offset_mapping_->push_back(text_.length());
       i++;
       continue;
     }
@@ -169,6 +172,8 @@ void NGInlineItemsBuilder::AppendWithWhiteSpaceCollapsing(
         text_.Append(kSpaceCharacter);
         last_collapsible_space_ = CollapsibleSpace::kSpace;
       }
+      if (offset_mapping_)
+        offset_mapping_->push_back(text_.length());
       i++;
       continue;
     }
@@ -181,6 +186,12 @@ void NGInlineItemsBuilder::AppendWithWhiteSpaceCollapsing(
     if (end_of_non_space == kNotFound)
       end_of_non_space = string.length();
     text_.Append(string, i, end_of_non_space - i);
+    if (offset_mapping_) {

[kojii, 2017/06/16 11:25:56]

Changes in this file is not for review, correct?

+      size_t apend_size = end_of_non_space - i;
+      for (size_t k = 0; k < apend_size; k++)
+        offset_mapping_->push_back(text_.length() - apend_size + k + 1);
+    }
+
     i = end_of_non_space;
     last_collapsible_space_ = CollapsibleSpace::kNone;
   }