Call GpuThread::Init before starting the GPU watchdog thread....

chrome/gpu/gpu_thread.cc

 // Copyright (c) 2010 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 "chrome/gpu/gpu_thread.h"
 
 #include <string>
 #include <vector>
 
 #include "app/gfx/gl/gl_context.h"
 #include "base/command_line.h"
 #include "base/worker_pool.h"
 #include "build/build_config.h"
 #include "chrome/common/child_process.h"
 #include "chrome/common/child_process_logging.h"
 #include "chrome/common/gpu_messages.h"
 #include "chrome/gpu/gpu_info_collector.h"
 #include "ipc/ipc_channel_handle.h"
 
 #if defined(OS_WIN)
 #include "app/win_util.h"
 #endif
 
-#if defined(TOOLKIT_USES_GTK)
-#include <gtk/gtk.h>
-#include "app/x11_util.h"
-#include "gfx/gtk_util.h"
-#endif
-
 GpuThread::GpuThread() {
-#if defined(OS_LINUX)
-  {
-    // The X11 port of the command buffer code assumes it can access the X
-    // display via the macro GDK_DISPLAY(), which implies that Gtk has been
-    // initialized. This code was taken from PluginThread. TODO(kbr):
-    // rethink whether initializing Gtk is really necessary or whether we
-    // should just send a raw display connection down to the GPUProcessor.
-    g_thread_init(NULL);
-    gfx::GtkInitFromCommandLine(*CommandLine::ForCurrentProcess());
-    x11_util::SetDefaultX11ErrorHandlers();
-  }
-#endif
 }
 
 GpuThread::~GpuThread() {
 }
 
 void GpuThread::Init(const base::Time& process_start_time) {
   gpu_info_collector::CollectGraphicsInfo(&gpu_info_);
   child_process_logging::SetGpuInfo(gpu_info_);
 
 #if defined(OS_WIN)
@@ skipping 98 matching lines @@
       NewRunnableFunction(&GpuThread::SetDxDiagnostics, thread, node));
 }
 
 // Runs on the GPU thread.
 void GpuThread::SetDxDiagnostics(GpuThread* thread, const DxDiagNode& node) {
   thread->gpu_info_.SetDxDiagnostics(node);
   thread->gpu_info_.SetProgress(GPUInfo::kComplete);
 }
 
 #endif