Move SkGLContext and some GrGLInterface implementations to skgputest module

include/gpu/gl/angle/SkANGLEGLContext.h

Index: include/gpu/gl/angle/SkANGLEGLContext.h
diff --git a/include/gpu/gl/angle/SkANGLEGLContext.h b/include/gpu/gl/angle/SkANGLEGLContext.h
deleted file mode 100644
index ea5e877ca27e8b3bae4565bcd38e111e3f2cc9f3..0000000000000000000000000000000000000000
--- a/include/gpu/gl/angle/SkANGLEGLContext.h
+++ /dev/null
@@ -1,61 +0,0 @@
-
-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#ifndef SkANGLEGLContext_DEFINED
-#define SkANGLEGLContext_DEFINED
-
-#if SK_ANGLE
-
-#include "gl/SkGLContext.h"
-
-class SkANGLEGLContext : public SkGLContext {
-public:
-    ~SkANGLEGLContext() override;
-#ifdef SK_BUILD_FOR_WIN
-    static SkANGLEGLContext* CreateDirectX() {
-        SkANGLEGLContext* ctx = new SkANGLEGLContext(false);
-        if (!ctx->isValid()) {
-            delete ctx;
-            return NULL;
-        }
-        return ctx;
-    }
-#endif
-    static SkANGLEGLContext* CreateOpenGL() {
-        SkANGLEGLContext* ctx = new SkANGLEGLContext(true);
-        if (!ctx->isValid()) {
-            delete ctx;
-            return NULL;
-        }
-        return ctx;
-    }
-
-    GrEGLImage texture2DToEGLImage(GrGLuint texID) const override;
-    void destroyEGLImage(GrEGLImage) const override;
-    GrGLuint eglImageToExternalTexture(GrEGLImage) const override;
-    SkGLContext* createNew() const override;
-
-    // The param is an EGLNativeDisplayType and the return is an EGLDispay.
-    static void* GetD3DEGLDisplay(void* nativeDisplay, bool useGLBackend);
-
-private:
-    SkANGLEGLContext(bool preferGLBackend);
-    void destroyGLContext();
-
-    void onPlatformMakeCurrent() const override;
-    void onPlatformSwapBuffers() const override;
-    GrGLFuncPtr onPlatformGetProcAddress(const char* name) const override;
-
-    void* fContext;
-    void* fDisplay;
-    void* fSurface;
-    bool  fIsGLBackend;
-};
-
-#endif
-
-#endif