Remove override on thread IO restrictions.

ui/gfx/compositor/compositor_gl.cc

 // Copyright (c) 2011 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 "ui/gfx/compositor/compositor.h"
 
 #include <GL/gl.h>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/threading/thread_restrictions.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkMatrix.h"
 #include "third_party/skia/include/core/SkScalar.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/transform.h"
 #include "ui/gfx/gl/gl_bindings.h"
 #include "ui/gfx/gl/gl_context.h"
 #include "ui/gfx/gl/gl_implementation.h"
 #include "ui/gfx/gl/gl_surface.h"
 #include "ui/gfx/gl/gl_surface_glx.h"
@@ skipping 212 matching lines @@
 void CompositorGL::NotifyEnd() {
   DCHECK(started_);
   gl_context_->SwapBuffers();
   started_ = false;
 }
 
 } // namespace
 
 // static
 Compositor* Compositor::Create(gfx::AcceleratedWidget widget) {
-  // The following line of code exists soley to disable IO restrictions
-  // on this thread long enough to perform the GL bindings.
-  // TODO(backer) Remove this when GL initialisation cleaned up.
-  base::ThreadRestrictions::ScopedAllowIO allow_io;
   // TODO(backer) Remove this when GL thread patch lands. Should be init'd
   // by the new GPU thread.
   // http://codereview.chromium.org/6677055/
   gfx::InitializeGLBindings(gfx::kGLImplementationDesktopGL);
   gfx::GLSurfaceGLX::InitializeOneOff();
 
  if (gfx::GetGLImplementation() != gfx::kGLImplementationNone)
    return new glHidden::CompositorGL(widget);
   return NULL;
 }
@@ skipping 58 matching lines @@
 
 // static
 Compositor* Compositor::Create(gfx::AcceleratedWidget widget) {
   if (gfx::GetGLImplementation() != gfx::kGLImplementationNone)
     return new CompositorGL(widget);
   return NULL;
 }
 #endif
 
 }  // namespace ui