Linux: --single-process with GPU acceleration.

app/gfx/gl/gl_context_linux.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.
 
 // This file implements the ViewGLContext and PbufferGLContext classes.
 
 #include "app/gfx/gl/gl_context.h"
 
 extern "C" {
 #include <X11/Xlib.h>
@@ skipping 10 matching lines @@
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 
 namespace {
 
 Display* GetXDisplayHelper() {
   static Display* display = NULL;
 
   if (!display) {
-    if (x11_util::XDisplayExists()) {
-      display = x11_util::GetXDisplay();
-    } else {
-      display = XOpenDisplay(NULL);
-    }
+    display = XOpenDisplay(NULL);
+    CHECK(display);
   }
+
   return display;
 }
 
-}
+}  // namespace
 
 namespace gfx {
 
 typedef GLXContext GLContextHandle;
 typedef GLXPbuffer PbufferHandle;
 
 class BaseLinuxGLContext : public GLContext {
  public:
   virtual std::string GetExtensions();
 };
@@ skipping 771 matching lines @@
     }
     case kGLImplementationMockGL:
       return new StubGLContext;
     default:
       NOTREACHED();
       return NULL;
   }
 }
 
 }  // namespace gfx