Initialize glGen* call id args to zero

src/gpu/gl/debug/GrGLCreateDebugInterface.cpp

Index: src/gpu/gl/debug/GrGLCreateDebugInterface.cpp
diff --git a/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp b/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp
index f5440fe31375c72cf63f72370c41c09c8bdeedd4..bcc3007650906656c1af1c0458fc2498c238813a 100644
--- a/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp
+++ b/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp
@@ -513,9 +513,10 @@ GrGLvoid debugGenObjs(GrDebugGL::GrObjTypes type,
                       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();
     }
 }