Improve GL helpers.

mojo/gpu/gl_context.cc

Index: mojo/gpu/gl_context.cc
diff --git a/mojo/gpu/gl_context.cc b/mojo/gpu/gl_context.cc
index 05bd1e355269ad9a72bb2df570f260770499dc60..9cbc94fc24ea7f915267cb4fd9084160366161b4 100644
--- a/mojo/gpu/gl_context.cc
+++ b/mojo/gpu/gl_context.cc
@@ -4,7 +4,7 @@
 
 #include "mojo/gpu/gl_context.h"
 #include "mojo/public/cpp/application/connect.h"
-#include "mojo/public/interfaces/application/shell.mojom.h"
+#include "mojo/public/interfaces/application/application_connector.mojom.h"
 #include "mojo/services/gpu/interfaces/gpu.mojom.h"
 
 namespace mojo {
@@ -24,10 +24,11 @@ GLContext::~GLContext() {
   MGLDestroyContext(context_);
 }
 
-base::WeakPtr<GLContext> GLContext::Create(Shell* shell) {
+base::WeakPtr<GLContext> GLContext::CreateOffscreen(
+    ApplicationConnector* connector) {
   ServiceProviderPtr native_viewport;
-  shell->ConnectToApplication("mojo:native_viewport_service",
-                              GetProxy(&native_viewport), nullptr);
+  connector->ConnectToApplication("mojo:native_viewport_service",
+                                  GetProxy(&native_viewport), nullptr);
   GpuPtr gpu_service;
   ConnectToService(native_viewport.get(), &gpu_service);
   CommandBufferPtr command_buffer;