Migrate skia_surfaceless_gl_renderer to GrDirectContext

Just a name update to keep up with Skia.

Change-Id: I61118e4cf4a18f5bdadbd7005dbf1f69be12e223
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2470464
Auto-Submit: Adlai Holler <adlai@google.com>
Commit-Queue: Robert Kroeger <rjkroege@chromium.org>
Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Cr-Commit-Position: refs/heads/master@{#817032}

ui/ozone/demo/skia/skia_surfaceless_gl_renderer.cc

@@ -17,6 +17,7 @@
 #include "third_party/skia/include/core/SkDeferredDisplayListRecorder.h"
 #include "third_party/skia/include/core/SkTypeface.h"
 #include "third_party/skia/include/gpu/GrBackendSurface.h"
+#include "third_party/skia/include/gpu/GrDirectContext.h"
 #include "third_party/skia/include/gpu/gl/GrGLAssembleInterface.h"
 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
 #include "ui/display/types/display_snapshot.h"
@@ -80,7 +81,7 @@ class SurfacelessSkiaGlRenderer::BufferWrapper {
   gl::GLImage* image() const { return image_.get(); }
   SkSurface* sk_surface() const { return sk_surface_.get(); }
 
-  bool Initialize(GrContext* gr_context,
+  bool Initialize(GrDirectContext* gr_context,
                   gfx::AcceleratedWidget widget,
                   const gfx::Size& size);
   void BindFramebuffer();
@@ -106,7 +107,7 @@ SurfacelessSkiaGlRenderer::BufferWrapper::~BufferWrapper() {
 }
 
 bool SurfacelessSkiaGlRenderer::BufferWrapper::Initialize(
-    GrContext* gr_context,
+    GrDirectContext* gr_context,
     gfx::AcceleratedWidget widget,
     const gfx::Size& size) {
   glGenTextures(1, &gl_tex_);