Improve indexed gl state related GL commands.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
index 09ae7a3e22992fd7a39f24bdc090688f62312608..47306f984dfd57464ed415545c6423e41a6cd843 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
@@ -3256,6 +3256,41 @@ TEST_P(GLES2DecoderTest, ImplementationReadColorFormatAndType) {
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 }
 
+TEST_P(GLES3DecoderTest, FramebufferTextureLayerNoBoundFramebuffer) {
+  DoBindTexture(GL_TEXTURE_3D, client_texture_id_, kServiceTextureId);
+  EXPECT_CALL(*gl_, FramebufferTextureLayer(_, _, _, _, _)).Times(0);
+  cmds::FramebufferTextureLayer cmd;
+  cmd.Init(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, client_texture_id_, 4, 5);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+}
+
+TEST_P(GLES3DecoderTest, FramebufferTextureLayerInvalidTextureTarget) {
+  DoBindFramebuffer(
+      GL_FRAMEBUFFER, client_framebuffer_id_, kServiceFramebufferId);
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
+  EXPECT_CALL(*gl_, FramebufferTextureLayer(_, _, _, _, _)).Times(0);
+  cmds::FramebufferTextureLayer cmd;
+  cmd.Init(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, client_texture_id_, 4, 5);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+}
+
+TEST_P(GLES3DecoderTest, FramebufferTextureLayerValidArgs) {
+  DoBindFramebuffer(
+      GL_FRAMEBUFFER, client_framebuffer_id_, kServiceFramebufferId);
+  DoBindTexture(GL_TEXTURE_3D, client_texture_id_, kServiceTextureId);
+  EXPECT_CALL(*gl_, FramebufferTextureLayer(GL_FRAMEBUFFER,
+                                            GL_COLOR_ATTACHMENT0,
+                                            kServiceTextureId, 4, 5))
+      .Times(1)
+      .RetiresOnSaturation();
+  cmds::FramebufferTextureLayer cmd;
+  cmd.Init(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, client_texture_id_, 4, 5);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
+
 // TODO(gman): PixelStorei
 
 // TODO(gman): SwapBuffers