queryCommandSupported() should return 'true' for cut/copy/paste editing commands

Source/core/editing/EditorCommand.cpp

Index: Source/core/editing/EditorCommand.cpp
diff --git a/Source/core/editing/EditorCommand.cpp b/Source/core/editing/EditorCommand.cpp
index c2ddb806a47e74a84b24686260100019d34f86ef..e2f664ea2efd3b0f673dfcff1c8888838f5c74b8 100644
--- a/Source/core/editing/EditorCommand.cpp
+++ b/Source/core/editing/EditorCommand.cpp
@@ -1174,20 +1174,14 @@ static bool supportedCopyCut(LocalFrame* frame)
 {
     if (!frame)
         return false;
-
-    Settings* settings = frame->settings();
-    bool defaultValue = (settings && settings->javaScriptCanAccessClipboard()) || UserGestureIndicator::processingUserGesture();
-    return frame->editor().client().canCopyCut(frame, defaultValue);
+    return true;
 }
 
 static bool supportedPaste(LocalFrame* frame)
 {
     if (!frame)
         return false;
-
-    Settings* settings = frame->settings();
-    bool defaultValue = settings && settings->javaScriptCanAccessClipboard() && settings->DOMPasteAllowed();
-    return frame->editor().client().canPaste(frame, defaultValue);
+    return true;
 }
 
 // Enabled functions
@@ -1232,12 +1226,16 @@ static bool enableCaretInEditableText(LocalFrame& frame, Event* event, EditorCom
 
 static bool enabledCopy(LocalFrame& frame, Event*, EditorCommandSource)
 {
-    return frame.editor().canDHTMLCopy() || frame.editor().canCopy();
+    Settings* settings = frame.settings();
+    bool defaultValue = (settings && settings->javaScriptCanAccessClipboard()) || UserGestureIndicator::processingUserGesture();
+    return frame.editor().client().canCopyCut(&frame, defaultValue) && (frame.editor().canDHTMLCopy() || frame.editor().canCopy());
 }
 
 static bool enabledCut(LocalFrame& frame, Event*, EditorCommandSource)
 {
-    return frame.editor().canDHTMLCut() || frame.editor().canCut();
+    Settings* settings = frame.settings();
+    bool defaultValue = (settings && settings->javaScriptCanAccessClipboard()) || UserGestureIndicator::processingUserGesture();
+    return frame.editor().client().canCopyCut(&frame, defaultValue) && (frame.editor().canDHTMLCut() || frame.editor().canCut());
 }
 
 static bool enabledInEditableText(LocalFrame& frame, Event* event, EditorCommandSource)
@@ -1272,7 +1270,9 @@ static bool enabledInRichlyEditableText(LocalFrame& frame, Event*, EditorCommand
 
 static bool enabledPaste(LocalFrame& frame, Event*, EditorCommandSource)
 {
-    return frame.editor().canPaste();
+    Settings* settings = frame.settings();
+    bool defaultValue = settings && settings->javaScriptCanAccessClipboard() && settings->DOMPasteAllowed();
+    return frame.editor().client().canPaste(&frame, defaultValue) && frame.editor().canPaste();
 }
 
 static bool enabledRangeInEditableText(LocalFrame& frame, Event*, EditorCommandSource)