Migrate WTF::HashMap::add() to ::insert()

third_party/WebKit/Source/core/layout/LayoutView.cpp

Index: third_party/WebKit/Source/core/layout/LayoutView.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutView.cpp b/third_party/WebKit/Source/core/layout/LayoutView.cpp
index e5c58636375c34cd215f9687212fd01482768c24..97b8fa5a79adac5aef54633c5b53d5df226b11b3 100644
--- a/third_party/WebKit/Source/core/layout/LayoutView.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutView.cpp
@@ -710,7 +710,7 @@ void LayoutView::setSelection(
         LayoutBlock* cb = os->containingBlock();
         while (cb && !cb->isLayoutView()) {
           SelectedBlockMap::AddResult result =
-              oldSelectedBlocks.add(cb, cb->getSelectionState());
+              oldSelectedBlocks.insert(cb, cb->getSelectionState());
           if (!result.isNewEntry)
             break;
           cb = cb->containingBlock();
@@ -766,7 +766,7 @@ void LayoutView::setSelection(
       LayoutBlock* cb = o->containingBlock();
       while (cb && !cb->isLayoutView()) {
         SelectedBlockMap::AddResult result =
-            newSelectedBlocks.add(cb, cb->getSelectionState());
+            newSelectedBlocks.insert(cb, cb->getSelectionState());
         if (!result.isNewEntry)
           break;
         cb = cb->containingBlock();