Move shell service to toplevel shell namespace

media/mojo/services/mojo_decoder_factory.h

Index: media/mojo/services/mojo_decoder_factory.h
diff --git a/media/mojo/services/mojo_decoder_factory.h b/media/mojo/services/mojo_decoder_factory.h
index 94350a61d89bb911c6d01a8d784121660da4f30b..e834239c0ac7516c68d54dc820127b34091dc421 100644
--- a/media/mojo/services/mojo_decoder_factory.h
+++ b/media/mojo/services/mojo_decoder_factory.h
@@ -14,7 +14,7 @@ namespace media {
 class MojoDecoderFactory : public DecoderFactory {
  public:
   explicit MojoDecoderFactory(
-      mojo::shell::mojom::InterfaceProvider* interface_provider);
+      shell::mojom::InterfaceProvider* interface_provider);
   ~MojoDecoderFactory() final;
 
   void CreateAudioDecoders(
@@ -26,7 +26,7 @@ class MojoDecoderFactory : public DecoderFactory {
       ScopedVector<VideoDecoder>* video_decoders) final;
 
  private:
-  mojo::shell::mojom::InterfaceProvider* interface_provider_;
+  shell::mojom::InterfaceProvider* interface_provider_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoDecoderFactory);
 };