Decouple PassThroughImageTransportSurface from GpuCommandBufferStub

gpu/ipc/service/image_transport_surface_linux.cc

Index: gpu/ipc/service/image_transport_surface_linux.cc
diff --git a/gpu/ipc/service/image_transport_surface_linux.cc b/gpu/ipc/service/image_transport_surface_linux.cc
index d9929791fa415fc9db7fc155d23523f2663cdba6..2ead75180513681b5d39be84f554a7820cacd76c 100644
--- a/gpu/ipc/service/image_transport_surface_linux.cc
+++ b/gpu/ipc/service/image_transport_surface_linux.cc
@@ -12,7 +12,7 @@ namespace gpu {
 // static
 scoped_refptr<gl::GLSurface> ImageTransportSurface::CreateNativeSurface(
     GpuChannelManager* manager,
-    GpuCommandBufferStub* stub,
+    base::WeakPtr<ImageTransportSurfaceDelegate> delegate,
     SurfaceHandle surface_handle,
     gl::GLSurface::Format format) {
   DCHECK_NE(surface_handle, kNullSurfaceHandle);
@@ -25,7 +25,7 @@ scoped_refptr<gl::GLSurface> ImageTransportSurface::CreateNativeSurface(
   if (!surface)
     return surface;
   return scoped_refptr<gl::GLSurface>(
-      new PassThroughImageTransportSurface(stub, surface.get()));
+      new PassThroughImageTransportSurface(delegate, surface.get()));
 }
 
 }  // namespace gpu