Move SkGLContext and some GrGLInterface implementations to skgputest module

gm/image.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <functional>
 #include "gm.h"
 #include "SkAutoPixmapStorage.h"
@@ skipping 415 matching lines @@
 DEF_GM( return new ScaleGeneratorGM; )
 
 #if SK_SUPPORT_GPU
 #include "GrContextFactory.h"
 #endif
 
 DEF_SIMPLE_GM(new_texture_image, canvas, 225, 60) {
     GrContext* context = nullptr;
 #if SK_SUPPORT_GPU
     context = canvas->getGrContext();
-    GrContextFactory factory;
+    sk_gpu_test::GrContextFactory factory;
 #endif
     if (!context) {
         skiagm::GM::DrawGpuOnlyMessage(canvas);
         return;
     }
 
     auto render_image = [](SkCanvas* canvas) {
         canvas->clear(SK_ColorBLUE);
         SkPaint paint;
         paint.setColor(SK_ColorRED);
@@ skipping 53 matching lines @@
         }
         if (context) {
             sk_sp<SkImage> texImage(image->makeTextureImage(context));
             if (texImage) {
                 canvas->drawImage(texImage, 0, 0);
             }
         }
         canvas->translate(image->width() + kPad, 0);
     }
 }