Added code to fix visibility of select all option in context menu.

Source/web/ContextMenuClientImpl.cpp

Index: Source/web/ContextMenuClientImpl.cpp
diff --git a/Source/web/ContextMenuClientImpl.cpp b/Source/web/ContextMenuClientImpl.cpp
index 517305b7570e797255ab3ac8d6ee9ef5271aafa6..6579f6e80dd9b70bd0f8e4d5b7461cae9cd200d0 100644
--- a/Source/web/ContextMenuClientImpl.cpp
+++ b/Source/web/ContextMenuClientImpl.cpp
@@ -219,8 +219,10 @@ void ContextMenuClientImpl::showContextMenu(const blink::ContextMenu* defaultMen
         data.editFlags |= WebContextMenuData::CanPaste;
     if (toLocalFrame(m_webView->focusedWebCoreFrame())->editor().canDelete())
         data.editFlags |= WebContextMenuData::CanDelete;
-    // We can always select all...
-    data.editFlags |= WebContextMenuData::CanSelectAll;
+    if (isHTMLTextFormControlElement(r.innerNonSharedNode())) {
+        if (!toHTMLTextFormControlElement(r.innerNonSharedNode())->value().isEmpty())
+            data.editFlags |= WebContextMenuData::CanSelectAll;
+    }
     data.editFlags |= WebContextMenuData::CanTranslate;
 
     // Links, Images, Media tags, and Image/Media-Links take preference over