Add support for EGLImage to GrGLInterface

include/gpu/gl/GrGLInterface.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLInterface_DEFINED
 #define GrGLInterface_DEFINED
 
@@ skipping 110 matching lines @@
     public:
         GLPtrAlias(GLPtr<FNPTR_TYPE>* base) : fBase(base) {}
         void operator=(FNPTR_TYPE ptr) { *fBase = ptr; }
     private:
         GLPtr<FNPTR_TYPE>* fBase;
     };
 
     typedef SkRefCnt INHERITED;
 
 public:
-    
-
     GrGLInterface();
 
     static GrGLInterface* NewClone(const GrGLInterface*);
 
     // Validates that the GrGLInterface supports its advertised standard. This means the necessary
     // function pointers have been initialized for both the GL version and any advertised
     // extensions.
     bool validate() const;
 
     // Indicates the type of GL implementation
@@ skipping 351 matching lines @@
         GLPtr<GrGLNamedFramebufferParameteriProc> fNamedFramebufferParameteri;
 
         /* KHR_debug */
         GLPtr<GrGLDebugMessageControlProc> fDebugMessageControl;
         GLPtr<GrGLDebugMessageInsertProc> fDebugMessageInsert;
         GLPtr<GrGLDebugMessageCallbackProc> fDebugMessageCallback;
         GLPtr<GrGLGetDebugMessageLogProc> fGetDebugMessageLog;
         GLPtr<GrGLPushDebugGroupProc> fPushDebugGroup;
         GLPtr<GrGLPopDebugGroupProc> fPopDebugGroup;
         GLPtr<GrGLObjectLabelProc> fObjectLabel;
+
+        /* EGL functions */
+        GLPtr<GrEGLCreateImageProc> fCreateImage;
+        GLPtr<GrEGLDestroyImageProc> fDestroyImage;
     } fFunctions;
 
     // Per-GL func callback
 #if GR_GL_PER_GL_FUNC_CALLBACK
     GrGLInterfaceCallbackProc fCallback;
     GrGLInterfaceCallbackData fCallbackData;
 #endif
 
     // This exists for internal testing.
     virtual void abandon() const {}
 };
 
 #endif