Call XkbSetDetectableAutoRepeat() on Chrome start-up

base/message_pump_aurax11.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 "base/message_pump_aurax11.h"
 
 #include <glib.h>
 #include <X11/extensions/XInput2.h>
+#include <X11/XKBlib.h>
 
 #include "base/basictypes.h"
 #include "base/message_loop.h"
 
 namespace {
 
 gboolean XSourcePrepare(GSource* source, gint* timeout_ms) {
   if (XPending(base::MessagePumpAuraX11::GetDefaultXDisplay()))
     *timeout_ms = 0;
   else
@@ skipping 58 matching lines @@
 #endif
 
   return true;
 }
 
 bool InitializeXInput2() {
   static bool xinput2_supported = InitializeXInput2Internal();
   return xinput2_supported;
 }
 
+bool InitializeXkb() {
+  Display* display = base::MessagePumpAuraX11::GetDefaultXDisplay();
+  if (!display)
+    return false;
+
+  int opcode, event, error;
+  int major = XkbMajorVersion;
+  int minor = XkbMinorVersion;
+  if (!XkbQueryExtension(display, &opcode, &event, &error, &major, &minor)) {
+    DVLOG(1) << "Xkb extension not available.";
+    return false;
+  }
+
+  // Ask the server not to send KeyRelease event when the user holds down a key.
+  // crbug.com/138092
+  Bool supported_return;
+  if (!XkbSetDetectableAutoRepeat(display, True, &supported_return)) {
+    DVLOG(1) << "XKB not supported in the server.";
+    return false;
+  }
+
+  return true;
+}
+
 }  // namespace
 
 namespace base {
 
 MessagePumpAuraX11::MessagePumpAuraX11() : MessagePumpGlib(),
     x_source_(NULL) {
   InitializeXInput2();
+  InitializeXkb();
   InitXSource();
 }
 
 // static
 Display* MessagePumpAuraX11::GetDefaultXDisplay() {
   if (!g_xdisplay)
     g_xdisplay = XOpenDisplay(NULL);
   return g_xdisplay;
 }
 
@@ skipping 85 matching lines @@
       return true;
   }
   return false;
 }
 
 void MessagePumpAuraX11::DidProcessXEvent(XEvent* xevent) {
   FOR_EACH_OBSERVER(MessagePumpObserver, observers(), DidProcessEvent(xevent));
 }
 
 }  // namespace base