Add support for EGL on linux

include/gpu/gl/SkNativeGLContext.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 SkNativeGLContext_DEFINED
 #define SkNativeGLContext_DEFINED
 
@@ skipping 17 matching lines @@
    {4, 1},
    {4, 2},
    {4, 3},
    {4, 4},
    {0, 0} /* end of list */
 };
 #define NUM_GL_VERSIONS SK_ARRAY_COUNT(gl_versions)
 
 #if defined(SK_BUILD_FOR_MAC)
     #include <OpenGL/OpenGL.h>
-#elif defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_NACL)
+#elif defined(SK_EGL)
     #include <GLES2/gl2.h>
     #include <EGL/egl.h>
 #elif defined(SK_BUILD_FOR_UNIX)
     #include <X11/Xlib.h>
     #include <GL/glx.h>
 #elif defined(SK_BUILD_FOR_WIN32)
     #include <windows.h>
     #include <GL/GL.h>
     #include "SkWGL.h"
 #endif
 
 class SkNativeGLContext : public SkGLContextHelper {
 public:
     SkNativeGLContext();
 
     virtual ~SkNativeGLContext();
 
     virtual void makeCurrent() const SK_OVERRIDE;
     virtual void swapBuffers() const SK_OVERRIDE;
 
     class AutoContextRestore {
     public:
         AutoContextRestore();
         ~AutoContextRestore();
 
     private:
     #if defined(SK_BUILD_FOR_MAC)
         CGLContextObj fOldCGLContext;
-    #elif defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_NACL)
+    #elif defined(SK_EGL)
         EGLContext fOldEGLContext;
         EGLDisplay fOldDisplay;
         EGLSurface fOldSurface;
     #elif defined(SK_BUILD_FOR_UNIX)
         GLXContext fOldGLXContext;
         Display* fOldDisplay;
         GLXDrawable fOldDrawable;
     #elif defined(SK_BUILD_FOR_WIN32)
         HDC fOldHDC;
         HGLRC fOldHGLRC;
 
     #elif defined(SK_BUILD_FOR_IOS)
         void* fEAGLContext;
     #endif
     };
 
 protected:
     virtual const GrGLInterface* createGLContext(GrGLStandard forcedGpuAPI) SK_OVERRIDE;
     virtual void destroyGLContext() SK_OVERRIDE;
 
 private:
 #if defined(SK_BUILD_FOR_MAC)
     CGLContextObj fContext;
-#elif defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_NACL)
+#elif defined(SK_EGL)
     EGLContext fContext;
     EGLDisplay fDisplay;
     EGLSurface fSurface;
 #elif defined(SK_BUILD_FOR_UNIX)
     GLXContext fContext;
     Display* fDisplay;
     Pixmap fPixmap;
     GLXPixmap fGlxPixmap;
 #elif defined(SK_BUILD_FOR_WIN32)
     HWND fWindow;
     HDC fDeviceContext;
     HGLRC fGlRenderContext;
     static ATOM gWC;
     SkWGLPbufferContext* fPbufferContext;
 #elif defined(SK_BUILD_FOR_IOS)
     void* fEAGLContext;
 #endif
 };
 
 #endif