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

ui/gl/gl_egl_api_implementation.cc

Index: ui/gl/gl_egl_api_implementation.cc
diff --git a/ui/gl/gl_egl_api_implementation.cc b/ui/gl/gl_egl_api_implementation.cc
index 764e7d5ad8012f540972b2838e2319e382da9daf..2a81a17493633417182215cab0b034288813769c 100644
--- a/ui/gl/gl_egl_api_implementation.cc
+++ b/ui/gl/gl_egl_api_implementation.cc
@@ -10,7 +10,7 @@
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_implementation.h"
 
-namespace gfx {
+namespace gl {
 
 RealEGLApi* g_real_egl;
 
@@ -111,6 +111,4 @@ bool GetGLWindowSystemBindingInfoEGL(GLWindowSystemBindingInfo* info) {
   return true;
 }
 
-}  // namespace gfx
-
-
+}  // namespace gl