Fix CopyTexImage2D when using unsized internal formats

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
index a852521c695c095d8a3ffbf94ed079213766bc1a..48c0bef5e2791215e44370812d8b883f1fbf15cc 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
@@ -348,6 +348,7 @@ class GLES2DecoderTestBase : public ::testing::TestWithParam<bool> {
       GLenum target, GLenum attachment, GLenum tex_target,
       GLuint texture_client_id, GLuint texture_service_id,
       GLint level, GLenum error);
+  GLenum DoCheckFramebufferStatus(GLenum target);
   void DoVertexAttribPointer(
       GLuint index, GLint size, GLenum type, GLsizei stride, GLuint offset);
   void DoVertexAttribDivisorANGLE(GLuint index, GLuint divisor);