Some fixes around GrContext::abandonContext:

src/gpu/gl/debug/GrGLCreateDebugInterface.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "gl/GrGLInterface.h"
@@ skipping 778 matching lines @@
     }
 
     virtual ~GrDebugGLInterface() {
         GrDebugGL::staticUnRef();
     }
 
     void setWrapped(GrGLInterface *interface) {
         fWrapped.reset(interface);
     }
 
+    virtual void abandon() const SK_OVERRIDE {
+        GrDebugGL::abandon();
+    }
+
     // TODO: there are some issues w/ wrapping another GL interface inside the
     // debug interface:
     //      Since none of the "gl" methods are member functions they don't get
     //      a "this" pointer through which to access "fWrapped"
     //      This could be worked around by having all of them access the
     //      "glInterface" pointer - i.e., treating the debug interface as a
     //      true singleton
     //
     //      The problem with this is that we also want to handle OpenGL
     //      contexts. The natural way to do this is to have multiple debug
@@ skipping 160 matching lines @@
     functions->fMatrixLoadIdentity = noOpGLMatrixLoadIdentity;
 
     functions->fBindFragDataLocationIndexed =
                                     noOpGLBindFragDataLocationIndexed;
 
     interface->fExtensions.init(kGL_GrGLStandard, functions->fGetString, functions->fGetStringi,
                                 functions->fGetIntegerv);
 
     return interface;
 }