[Editing] Store |CommandSource| in |CompositeEditCommand|

third_party/WebKit/Source/core/editing/InputMethodController.cpp

Index: third_party/WebKit/Source/core/editing/InputMethodController.cpp
diff --git a/third_party/WebKit/Source/core/editing/InputMethodController.cpp b/third_party/WebKit/Source/core/editing/InputMethodController.cpp
index bae3cea1d0ff453dbdafaf3f688cb67b036bec9d..08f0805281e004f7fde67f28950c48ec0b17d83c 100644
--- a/third_party/WebKit/Source/core/editing/InputMethodController.cpp
+++ b/third_party/WebKit/Source/core/editing/InputMethodController.cpp
@@ -124,7 +124,8 @@ void insertTextDuringCompositionWithEvents(
 
   switch (compositionType) {
     case TypingCommand::TextCompositionType::TextCompositionUpdate:
-      TypingCommand::insertText(*frame.document(), text, options,
+      TypingCommand::insertText(*frame.document(),
+                                CommandSource::MenuOrKeyBinding, text, options,
                                 compositionType);
       break;
     case TypingCommand::TextCompositionType::TextCompositionConfirm:
@@ -289,8 +290,10 @@ bool InputMethodController::replaceComposition(const String& text) {
   // If text is empty, then delete the old composition here. If text is
   // non-empty, InsertTextCommand::input will delete the old composition with
   // an optimized replace operation.
-  if (text.isEmpty())
-    TypingCommand::deleteSelection(document(), 0);
+  if (text.isEmpty()) {
+    TypingCommand::deleteSelection(document(), CommandSource::MenuOrKeyBinding,
+                                   0);
+  }
 
   clear();
 
@@ -637,6 +640,7 @@ void InputMethodController::setComposition(
       // composition, however some IME (e.g. Japanese IBus-Anthy) did this, so
       // we simply delete selection without sending extra events.
       TypingCommand::deleteSelection(document(),
+                                     CommandSource::MenuOrKeyBinding,
                                      TypingCommand::PreventSpellChecking);
     }
 
@@ -919,7 +923,7 @@ void InputMethodController::extendSelectionAndDelete(int before, int after) {
   dispatchBeforeInputEditorCommand(
       document().focusedElement(), InputEvent::InputType::DeleteContentBackward,
       new RangeVector(1, m_frame->selection().firstRange()));
-  TypingCommand::deleteSelection(document());
+  TypingCommand::deleteSelection(document(), CommandSource::MenuOrKeyBinding);
 }
 
 // TODO(yabinh): We should reduce the number of selectionchange events.
@@ -954,7 +958,7 @@ void InputMethodController::deleteSurroundingText(int before, int after) {
     const int adjustedStart = start - static_cast<int>(diff);
     if (!setSelectionOffsets(PlainTextRange(adjustedStart, selectionStart)))
       return;
-    TypingCommand::deleteSelection(document());
+    TypingCommand::deleteSelection(document(), CommandSource::MenuOrKeyBinding);
 
     selectionEnd = selectionEnd - (selectionStart - adjustedStart);
     selectionStart = adjustedStart;
@@ -979,7 +983,7 @@ void InputMethodController::deleteSurroundingText(int before, int after) {
     const int adjustedEnd = end + static_cast<int>(diff);
     if (!setSelectionOffsets(PlainTextRange(selectionEnd, adjustedEnd)))
       return;
-    TypingCommand::deleteSelection(document());
+    TypingCommand::deleteSelection(document(), CommandSource::MenuOrKeyBinding);
   }
 
   setSelectionOffsets(PlainTextRange(selectionStart, selectionEnd));