Add sampler related ES3 APIs to command buffer.

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 459f1e0ec35845698703bb152da96584316958de..0d62c559540e0e1738cb8422511f642ae3d39e36 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
@@ -131,6 +131,10 @@ class GLES2DecoderTestBase : public ::testing::TestWithParam<bool> {
     return decoder_->GetQueryManager()->GetQuery(client_id);
   }
 
+  bool GetSamplerServiceId(GLuint client_id, GLuint* service_id) const {
+    return group_->GetSamplerServiceId(client_id, service_id);
+  }
+
   // This name doesn't match the underlying function, but doing it this way
   // prevents the need to special-case the unit test generation
   VertexAttribManager* GetVertexArrayInfo(GLuint client_id) {
@@ -427,7 +431,8 @@ class GLES2DecoderTestBase : public ::testing::TestWithParam<bool> {
   static const GLuint kServiceRenderbufferId = 303;
   static const GLuint kServiceTextureId = 304;
   static const GLuint kServiceProgramId = 305;
-  static const GLuint kServiceShaderId = 306;
+  static const GLuint kServiceSamplerId = 306;
+  static const GLuint kServiceShaderId = 307;
   static const GLuint kServiceElementBufferId = 308;
   static const GLuint kServiceQueryId = 309;
   static const GLuint kServiceVertexArrayId = 310;
@@ -520,6 +525,7 @@ class GLES2DecoderTestBase : public ::testing::TestWithParam<bool> {
   GLuint client_framebuffer_id_;
   GLuint client_program_id_;
   GLuint client_renderbuffer_id_;
+  GLuint client_sampler_id_;
   GLuint client_shader_id_;
   GLuint client_texture_id_;
   GLuint client_element_buffer_id_;