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

media/gpu/android_copying_backing_strategy.h

Index: media/gpu/android_copying_backing_strategy.h
diff --git a/media/gpu/android_copying_backing_strategy.h b/media/gpu/android_copying_backing_strategy.h
index d1a3f098e13c41056dfdca67d3a360b539148f92..35df4e08f4d5a401bae7ab8c9c32b85bcdb583e7 100644
--- a/media/gpu/android_copying_backing_strategy.h
+++ b/media/gpu/android_copying_backing_strategy.h
@@ -34,11 +34,11 @@ class MEDIA_GPU_EXPORT AndroidCopyingBackingStrategy
   ~AndroidCopyingBackingStrategy() override;
 
   // AndroidVideoDecodeAccelerator::BackingStrategy
-  gfx::ScopedJavaSurface Initialize(int surface_view_id) override;
+  gl::ScopedJavaSurface Initialize(int surface_view_id) override;
   void Cleanup(
       bool have_context,
       const AndroidVideoDecodeAccelerator::OutputBufferMap& buffers) override;
-  scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture() const override;
+  scoped_refptr<gl::SurfaceTexture> GetSurfaceTexture() const override;
   uint32_t GetTextureTarget() const override;
   gfx::Size GetPictureBufferSize() const override;
   void UseCodecBufferForPictureBuffer(
@@ -57,7 +57,7 @@ class MEDIA_GPU_EXPORT AndroidCopyingBackingStrategy
   AVDAStateProvider* state_provider_;
 
   // A container of texture. Used to set a texture to |media_codec_|.
-  scoped_refptr<gfx::SurfaceTexture> surface_texture_;
+  scoped_refptr<gl::SurfaceTexture> surface_texture_;
 
   // The texture id which is set to |surface_texture_|.
   uint32_t surface_texture_id_;