crbug.com/121235 - Renderer crash on middle-click on Linux Desktop.

webkit/glue/webclipboard_impl.cc

Index: webkit/glue/webclipboard_impl.cc
diff --git a/webkit/glue/webclipboard_impl.cc b/webkit/glue/webclipboard_impl.cc
index eb71a615f4a27b7acd5404747a658740029915af..3dff08f28c9bcece37fef3c7d363c830a82dc0ab 100644
--- a/webkit/glue/webclipboard_impl.cc
+++ b/webkit/glue/webclipboard_impl.cc
@@ -258,10 +258,16 @@ bool WebClipboardImpl::ConvertBufferType(Buffer buffer,
       *result = ui::Clipboard::BUFFER_STANDARD;
       break;
     case BufferSelection:
-#if defined(USE_X11) && !defined(USE_AURA)
+#if defined(USE_X11)
+#if defined(OS_CHROMEOS)
+      //  Chrome OS only supports the standard clipboard,
+      //  but not the X selection clipboad.
+      return false;
+#else
       *result = ui::Clipboard::BUFFER_SELECTION;
       break;
 #endif
+#endif
     default:
       NOTREACHED();
       return false;