[InputEvent] Introduce temporary flag |BeforeInputTiming| (1/11)

third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.h

Index: third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.h
diff --git a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.h b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.h
index f6c2930ffa5ed34bbca22557c192a8fac3e8c561..2f9f88cb64664d52c01f0536ab9e05b3528bc676 100644
--- a/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.h
+++ b/third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.h
@@ -43,6 +43,9 @@ class HTMLSpanElement;
 class Text;
 
 enum class EditCommandSource { kMenuOrKeyBinding, kDOM };
+// TODO(chongz): Remove after we have moved all 'beforeinput' logic here.
+// https://crbug.com/670035.
+enum class BeforeInputTiming { kHasFiredBeforeCommand, kShouldFireInCommand };
 
 class EditCommandComposition final : public UndoStep {
  public:
@@ -81,8 +84,8 @@ class EditCommandComposition final : public UndoStep {
   //   * "beforeinput" was canceled, or
   //   * |frame| was destroyed by event handlers.
   // Note: Undo stack will always get popped.
-  bool willUnapply(EditCommandSource);
-  bool willReapply(EditCommandSource);
+  bool willUnapply(EditCommandSource, BeforeInputTiming);
+  bool willReapply(EditCommandSource, BeforeInputTiming);
 
   Member<Document> m_document;
   VisibleSelection m_startingSelection;
@@ -100,7 +103,8 @@ class CORE_EXPORT CompositeEditCommand : public EditCommand {
   ~CompositeEditCommand() override;
 
   // Returns |false| if the command failed.  e.g. It's aborted.
-  bool apply(EditCommandSource);
+  bool apply(EditCommandSource,
+             BeforeInputTiming = BeforeInputTiming::kHasFiredBeforeCommand);
   bool isFirstCommand(EditCommand* command) {
     return !m_commands.isEmpty() && m_commands.front() == command;
   }
@@ -129,7 +133,7 @@ class CORE_EXPORT CompositeEditCommand : public EditCommand {
   // |willApplyEditing()| should be called from
   //   * |CompositeEditCommand::apply()|, and
   //   * |TypingCommand::willAddTypingToOpenCommand()|.
-  bool willApplyEditing(EditCommandSource);
+  bool willApplyEditing(EditCommandSource, BeforeInputTiming);
 
   //
   // sugary-sweet convenience functions to help create and apply edit commands