Make EnabledVisibleSelection return false for user-triggered command and unfocused selection

third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp

Index: third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp b/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
index 0997b9633bc2789c5d7012f2c59a019564189db5..c1ca33153dbdef0641c9de722ec421cf18bfc496 100644
--- a/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/EditorCommand.cpp
@@ -2004,9 +2004,13 @@ static bool Enabled(LocalFrame&, Event*, EditorCommandSource) {
 
 static bool EnabledVisibleSelection(LocalFrame& frame,
                                     Event* event,
-                                    EditorCommandSource) {
+                                    EditorCommandSource source) {
   frame.GetDocument()->UpdateStyleAndLayoutIgnorePendingStylesheets();
 
+  if (source == kCommandFromMenuOrKeyBinding &&
+      !frame.Selection().SelectionHasFocus())
+    return false;
+
   // The term "visible" here includes a caret in editable text or a range in any
   // text.
   const VisibleSelection& selection =