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

ui/gl/init/gl_factory.h

 // Copyright 2016 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.
 
 #ifndef UI_GL_INIT_GL_FACTORY_H_
 #define UI_GL_INIT_GL_FACTORY_H_
 
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gl/gpu_preference.h"
 #include "ui/gl/init/gl_init_export.h"
 
-namespace gfx {
+namespace gl {
+
 class GLContext;
 class GLShareGroup;
 class GLSurface;
-};
 
-namespace gl {
 namespace init {
 
 // Initialize GL bindings.
 GL_INIT_EXPORT bool InitializeGLOneOff();
 
 // Create a GL context that is compatible with the given surface. |share_group|,
 // if non-NULL, is a group of contexts which the internally created OpenGL
 // context shares textures and other resources.
-GL_INIT_EXPORT scoped_refptr<gfx::GLContext> CreateGLContext(
-    gfx::GLShareGroup* share_group,
-    gfx::GLSurface* compatible_surface,
-    gfx::GpuPreference gpu_preference);
+GL_INIT_EXPORT scoped_refptr<GLContext> CreateGLContext(
+    GLShareGroup* share_group,
+    GLSurface* compatible_surface,
+    GpuPreference gpu_preference);
 
 // Create a GL surface that renders directly to a view.
-GL_INIT_EXPORT scoped_refptr<gfx::GLSurface> CreateViewGLSurface(
+GL_INIT_EXPORT scoped_refptr<GLSurface> CreateViewGLSurface(
     gfx::AcceleratedWidget window);
 
 #if defined(USE_OZONE)
 // Create a GL surface that renders directly into a window with surfaceless
 // semantics - there is no default framebuffer and the primary surface must
 // be presented as an overlay. If surfaceless mode is not supported or
 // enabled it will return a null pointer.
-GL_INIT_EXPORT scoped_refptr<gfx::GLSurface> CreateSurfacelessViewGLSurface(
+GL_INIT_EXPORT scoped_refptr<GLSurface> CreateSurfacelessViewGLSurface(
     gfx::AcceleratedWidget window);
 #endif  // defined(USE_OZONE)
 
 // Create a GL surface used for offscreen rendering.
-GL_INIT_EXPORT scoped_refptr<gfx::GLSurface> CreateOffscreenGLSurface(
+GL_INIT_EXPORT scoped_refptr<GLSurface> CreateOffscreenGLSurface(
     const gfx::Size& size);
 
 }  // namespace init
 }  // namespace gl
 
 #endif  // UI_GL_INIT_GL_FACTORY_H_