add callbacks to Images that wrap client-provided content

src/gpu/GrSurface.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 "GrSurface.h"
 #include "GrSurfacePriv.h"
 
@@ skipping 107 matching lines @@
     const GrTexture* thisTex = this->asTexture();
     if (thisTex && thisTex->internalHasPendingIO()) {
         return true;
     }
     const GrRenderTarget* thisRT = this->asRenderTarget();
     if (thisRT && thisRT->internalHasPendingIO()) {
         return true;
     }
     return false;
 }
+
+void GrSurface::onRelease() {
+    this->invokeReleaseProc();
+    this->INHERITED::onRelease();
+}
+
+void GrSurface::onAbandon() {
+    this->invokeReleaseProc();
+    this->INHERITED::onAbandon();
+}