Chromoting Host: Don't listen for PRIMARY selection changes

remoting/host/linux/x_server_clipboard.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/host/linux/x_server_clipboard.h"
 
 #include <X11/extensions/Xfixes.h>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
@@ skipping 63 matching lines @@
     large_selection_atom_ = atoms[1];
     selection_string_atom_ = atoms[2];
     targets_atom_ = atoms[3];
     timestamp_atom_ = atoms[4];
     utf8_string_atom_ = atoms[5];
     COMPILE_ASSERT(kNumAtomNames >= 6, kAtomNames_too_small);
   } else {
     LOG(ERROR) << "XInternAtoms failed";
   }
 
-  XFixesSelectSelectionInput(display_, clipboard_window_, XA_PRIMARY,
-                             XFixesSetSelectionOwnerNotifyMask);
   XFixesSelectSelectionInput(display_, clipboard_window_, clipboard_atom_,
                              XFixesSetSelectionOwnerNotifyMask);
 }
 
 void XServerClipboard::SetClipboard(const std::string& mime_type,
                                     const std::string& data) {
   DCHECK(display_);
 
   if (clipboard_window_ == BadValue)
     return;
@@ skipping 51 matching lines @@
   // quickly to our requests.
   if (!get_selections_time_.is_null() &&
       (base::TimeTicks::Now() - get_selections_time_) <
           base::TimeDelta::FromSeconds(5)) {
     // TODO(lambroslambrou): Instead of ignoring this notification, cancel any
     // pending request operations and ignore the resulting events, before
     // dispatching new requests here.
     return;
   }
 
-  // Only process PRIMARY and CLIPBOARD selections.
-  if (selection != clipboard_atom_ && selection != XA_PRIMARY)
+  // Only process CLIPBOARD selections.
+  if (selection != clipboard_atom_)
     return;
 
   // If we own the selection, don't request details for it.
   if (IsSelectionOwner(selection))
     return;
 
   get_selections_time_ = base::TimeTicks::Now();
 
   // Before getting the value of the chosen selection, request the list of
   // target formats it supports.
@@ skipping 199 matching lines @@
   } else {
     LOG(ERROR) << "XSetSelectionOwner failed for selection " << selection;
   }
 }
 
 bool XServerClipboard::IsSelectionOwner(Atom selection) {
   return selections_owned_.find(selection) != selections_owned_.end();
 }
 
 }  // namespace remoting