Index: third_party/WebKit/Source/core/editing/commands/EditCommand.cpp |
diff --git a/third_party/WebKit/Source/core/editing/commands/EditCommand.cpp b/third_party/WebKit/Source/core/editing/commands/EditCommand.cpp |
index 8ca374741da2815c1f830381cb91356aa97b4f5b..19ce48e48164d935ca99dc07412d4b65ab52a7c4 100644 |
--- a/third_party/WebKit/Source/core/editing/commands/EditCommand.cpp |
+++ b/third_party/WebKit/Source/core/editing/commands/EditCommand.cpp |
@@ -112,7 +112,8 @@ bool EditCommand::isRenderedCharacter(const Position& position) |
void EditCommand::setParent(CompositeEditCommand* parent) |
{ |
DCHECK((parent && !m_parent) || (!parent && m_parent)); |
- DCHECK(!parent || !isCompositeEditCommand() || !toCompositeEditCommand(this)->composition()); |
+ // Only allow merging |InsertFromDrop| with previous |DeleteByDrag| after applied. |
+ DCHECK(!parent || !isCompositeEditCommand() || inputType() == InputEvent::InputType::InsertFromDrop || !toCompositeEditCommand(this)->composition()); |
m_parent = parent; |
if (parent) { |
m_startingSelection = parent->m_endingSelection; |