Fix crash in BlitFramebufferCHROMIUM if a read or draw depth/stencil buffer is not present

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
index b4ce41f18c7e54b923fd40c3ef58603cd08f1499..d19ae397292e002f3a6d6e9e6fcb0037462924bb 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
@@ -832,9 +832,8 @@ void GLES2DecoderTestBase::SetupExpectationsForFramebufferClearingMulti(
     EXPECT_CALL(*gl_, ClearStencil(0))
         .Times(1)
         .RetiresOnSaturation();
-    EXPECT_CALL(*gl_, StencilMask(static_cast<GLuint>(-1)))
-        .Times(1)
-        .RetiresOnSaturation();
+    SetupExpectationsForStencilMask(static_cast<GLuint>(-1),
+                                    static_cast<GLuint>(-1));
   }
   if ((clear_bits & GL_DEPTH_BUFFER_BIT) != 0) {
     EXPECT_CALL(*gl_, ClearDepth(1.0f))