Delete usage and support for EGL_ANGLE_software_display extension.

content/common/gpu/gpu_channel_manager.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 "content/common/gpu/gpu_channel_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "content/child/child_thread.h"
 #include "content/common/gpu/gpu_channel.h"
@@ skipping 273 matching lines @@
                  weak_factory_.GetWeakPtr()));
 }
 
 void GpuChannelManager::OnLoseAllContexts() {
   gpu_channels_.clear();
 }
 
 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
   if (!default_offscreen_surface_.get()) {
     default_offscreen_surface_ =
-        gfx::GLSurface::CreateOffscreenGLSurface(false, gfx::Size(1, 1));
+        gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size(1, 1));
   }
   return default_offscreen_surface_.get();
 }
 
 }  // namespace content