Initialize glGen* call id args to zero

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 495 matching lines @@
     } else {
         shader->deleteAction();
     }
 }
 
 GrGLvoid debugGenObjs(GrDebugGL::GrObjTypes type,
                       GrGLsizei n,
                       GrGLuint* ids) {
 
    for (int i = 0; i < n; ++i) {
-        GrFakeRefObj *obj = GrDebugGL::getInstance()->createObj(type);
-        GrAlwaysAssert(obj);
-        ids[i] = obj->getID();
+       GrAlwaysAssert(ids[i] == 0);
+       GrFakeRefObj *obj = GrDebugGL::getInstance()->createObj(type);
+       GrAlwaysAssert(obj);
+       ids[i] = obj->getID();
     }
 }
 
 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenBuffers(GrGLsizei n, GrGLuint* ids) {
     debugGenObjs(GrDebugGL::kBuffer_ObjTypes, n, ids);
 }
 
 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenerateMipmap(GrGLenum level) {
 }
 
@@ skipping 451 matching lines @@
     functions->fMatrixLoadIdentity = noOpGLMatrixLoadIdentity;
 
     functions->fBindFragDataLocationIndexed =
                                     noOpGLBindFragDataLocationIndexed;
 
     interface->fExtensions.init(kGL_GrGLStandard, functions->fGetString, functions->fGetStringi,
                                 functions->fGetIntegerv, nullptr, GR_EGL_NO_DISPLAY);
 
     return interface;
 }