Move code in ui/gl/* from gfx:: to gl::

ui/gl/gl_surface_osmesa.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 "ui/gl/gl_surface_osmesa.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/numerics/safe_math.h"
 #include "third_party/mesa/src/include/GL/osmesa.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/scoped_make_current.h"
 
-namespace gfx {
+namespace gl {
 
 GLSurfaceOSMesa::GLSurfaceOSMesa(GLSurface::Format format,
                                  const gfx::Size& size)
     : size_(size),
       format_(format) {
   // Implementations of OSMesa surface do not support having a 0 size. In such
   // cases use a (1, 1) surface.
   if (size_.GetArea() == 0)
     size_.SetSize(1, 1);
 }
@@ skipping 81 matching lines @@
 gfx::SwapResult GLSurfaceOSMesaHeadless::SwapBuffers() {
   return gfx::SwapResult::SWAP_ACK;
 }
 
 GLSurfaceOSMesaHeadless::GLSurfaceOSMesaHeadless()
     : GLSurfaceOSMesa(SURFACE_OSMESA_BGRA, gfx::Size(1, 1)) {
 }
 
 GLSurfaceOSMesaHeadless::~GLSurfaceOSMesaHeadless() { Destroy(); }
 
-}  // namespace gfx
+}  // namespace gl