Fix leak of GrGLTexID when its owning GrGLTexture has been abandoned.

src/gpu/gl/GrGLRenderTarget.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLRenderTarget.h"
 
 #include "GrGpuGL.h"
 
 #define GPUGL static_cast<GrGpuGL*>(getGpu())
 
 #define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)
 
 void GrGLRenderTarget::init(const Desc& desc,
                             const GrGLIRect& viewport,
                             GrGLTexID* texID) {
     fRTFBOID                = desc.fRTFBOID;
     fTexFBOID               = desc.fTexFBOID;
     fMSColorRenderbufferID  = desc.fMSColorRenderbufferID;
     fViewport               = viewport;
-    fTexIDObj               = texID;
-    GrSafeRef(fTexIDObj);
+    fTexIDObj.reset(SkSafeRef(texID));
 }
 
 namespace {
 GrTextureDesc MakeDesc(GrTextureFlags flags,
                        int width, int height,
                        GrPixelConfig config, int sampleCnt,
                        GrSurfaceOrigin origin) {
     GrTextureDesc temp;
     temp.fFlags = flags;
     temp.fWidth = width;
@@ skipping 53 matching lines @@
         if (fRTFBOID && fRTFBOID != fTexFBOID) {
             GL_CALL(DeleteFramebuffers(1, &fRTFBOID));
         }
         if (fMSColorRenderbufferID) {
             GL_CALL(DeleteRenderbuffers(1, &fMSColorRenderbufferID));
         }
     }
     fRTFBOID                = 0;
     fTexFBOID               = 0;
     fMSColorRenderbufferID  = 0;
-    GrSafeUnref(fTexIDObj);
-    fTexIDObj = NULL;
+    fTexIDObj.reset(NULL);
     INHERITED::onRelease();
 }
 
 void GrGLRenderTarget::onAbandon() {
     fRTFBOID                = 0;
     fTexFBOID               = 0;
     fMSColorRenderbufferID  = 0;
-    if (NULL != fTexIDObj) {
+    if (NULL != fTexIDObj.get()) {
         fTexIDObj->abandon();
-        fTexIDObj = NULL;
+        fTexIDObj.reset(NULL);
     }
     INHERITED::onAbandon();
 }