FramebufferRenderbuffer() generates INVALID_OP if renderbuffer has never been bound.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_1.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include "base/command_line.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h"
@@ skipping 115 matching lines @@
     attach_cmd.Init(client_program_id_, client_shader_id_);
     EXPECT_EQ(error::kNoError, ExecuteCmd(attach_cmd));
   }
 };
 
 template <>
 void GLES2DecoderTestBase::SpecializedSetup<cmds::FramebufferRenderbuffer, 0>(
     bool valid) {
   DoBindFramebuffer(GL_FRAMEBUFFER, client_framebuffer_id_,
                     kServiceFramebufferId);
+  DoBindRenderbuffer(GL_RENDERBUFFER, client_renderbuffer_id_,
+                     kServiceRenderbufferId);
   if (valid) {
     EXPECT_CALL(*gl_, GetError())
         .WillOnce(Return(GL_NO_ERROR))
         .WillOnce(Return(GL_NO_ERROR))
         .RetiresOnSaturation();
   }
 };
 
 template <>
 void GLES2DecoderTestBase::SpecializedSetup<cmds::FramebufferTextureLayer, 0>(
@@ skipping 52 matching lines @@
         .Times(1)
         .RetiresOnSaturation();
   }
 }
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_1_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu