Revert 146458 "[EFL][WebGL] Implement a common GraphicsSurface I..."

Source/WebCore/platform/graphics/efl/GraphicsContext3DPrivate.h

Index: Source/WebCore/platform/graphics/efl/GraphicsContext3DPrivate.h
===================================================================
--- Source/WebCore/platform/graphics/efl/GraphicsContext3DPrivate.h	(revision 146732)
+++ Source/WebCore/platform/graphics/efl/GraphicsContext3DPrivate.h	(working copy)
@@ -59,37 +59,25 @@
     bool makeContextCurrent() const;
 
 private:
-#if USE(GRAPHICS_SURFACE)
-    enum PendingOperation {
-        Default = 0x00, // No Pending Operation.
-        CreateSurface = 0x01,
-        Resize = 0x02,
-        DeletePreviousSurface = 0x04
-    };
-
-    typedef unsigned PendingSurfaceOperation;
-#endif
-
     GraphicsContext3DPrivate(GraphicsContext3D*, HostWindow*);
     bool initialize();
-    void createGraphicsSurface();
     bool prepareBuffer() const;
     void releaseResources();
-
+#if USE(GRAPHICS_SURFACE)
+    bool makeSharedContextCurrent() const;
+#endif
     GraphicsContext3D* m_context;
     HostWindow* m_hostWindow;
     OwnPtr<GLPlatformContext> m_offScreenContext;
     OwnPtr<GLPlatformSurface> m_offScreenSurface;
 #if USE(GRAPHICS_SURFACE)
+    OwnPtr<GLPlatformContext> m_sharedContext;
+    OwnPtr<GLPlatformSurface> m_sharedSurface;
     GraphicsSurfaceToken m_surfaceHandle;
-    RefPtr<GraphicsSurface> m_graphicsSurface;
-    RefPtr<GraphicsSurface> m_previousGraphicsSurface;
-    PendingSurfaceOperation m_surfaceOperation : 3;
 #endif
     OwnPtr<GraphicsContext3D::ContextLostCallback> m_contextLostCallback;
     ListHashSet<GC3Denum> m_syntheticErrors;
     IntSize m_size;
-    IntRect m_targetRect;
 };
 
 } // namespace WebCore
@@ -97,3 +85,4 @@
 #endif
 
 #endif
+