Fix desynched GPU stencil mask cache values.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h

 // 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.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_BASE_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_BASE_H_
 
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/buffer_manager.h"
@@ skipping 321 matching lines @@
       GLuint restore_stencil,
       GLclampf restore_depth,
       bool restore_scissor_test);
 
   void SetupExpectationsForDepthMask(bool mask);
   void SetupExpectationsForEnableDisable(GLenum cap, bool enable);
   void SetupExpectationsForColorMask(bool red,
                                      bool green,
                                      bool blue,
                                      bool alpha);
+  void SetupExpectationsForStencilMask(uint32 front_mask,
+                                       uint32 back_mask);
 
   void SetupExpectationsForApplyingDirtyState(
       bool framebuffer_is_rgb,
       bool framebuffer_has_depth,
       bool framebuffer_has_stencil,
       GLuint color_bits,  // NOTE! bits are 0x1000, 0x0100, 0x0010, and 0x0001
       bool depth_mask,
       bool depth_enabled,
       GLuint front_stencil_mask,
       GLuint back_stencil_mask,
@@ skipping 274 matching lines @@
 };
 
 // SpecializedSetup specializations that are needed in multiple unittest files.
 template <>
 void GLES2DecoderTestBase::SpecializedSetup<cmds::LinkProgram, 0>(bool valid);
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_BASE_H_