add callbacks to Images that wrap client-provided content

src/gpu/GrSurface.cpp

Index: src/gpu/GrSurface.cpp
diff --git a/src/gpu/GrSurface.cpp b/src/gpu/GrSurface.cpp
index 678755a58f17c1a4b36b563f9b58aa2275e8c668..c052a235f07e023d8b70f878305400288f406274 100644
--- a/src/gpu/GrSurface.cpp
+++ b/src/gpu/GrSurface.cpp
@@ -125,3 +125,13 @@ bool GrSurface::hasPendingIO() const {
     }
     return false;
 }
+
+void GrSurface::onRelease() {
+    this->invokeReleaseProc();
+    this->INHERITED::onRelease();
+}
+
+void GrSurface::onAbandon() {
+    this->invokeReleaseProc();
+    this->INHERITED::onAbandon();
+}