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

ui/gl/android/surface_texture_listener.cc

Index: ui/gl/android/surface_texture_listener.cc
diff --git a/ui/gl/android/surface_texture_listener.cc b/ui/gl/android/surface_texture_listener.cc
index ee496602d8623b0709b7d3d371c3953cb2f8d0bc..6cd4d60cb11059a27df253ba793ce3a697d9f71d 100644
--- a/ui/gl/android/surface_texture_listener.cc
+++ b/ui/gl/android/surface_texture_listener.cc
@@ -9,7 +9,7 @@
 #include "base/threading/thread_task_runner_handle.h"
 #include "jni/SurfaceTextureListener_jni.h"
 
-namespace gfx {
+namespace gl {
 
 SurfaceTextureListener::SurfaceTextureListener(const base::Closure& callback,
                                                bool use_any_thread)
@@ -41,4 +41,4 @@ bool SurfaceTextureListener::RegisterSurfaceTextureListener(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
-}  // namespace gfx
+}  // namespace gl