gpu: enable FRAMBUFFER_SRGB on desktop

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 b14913504927a77a807c073fa8a53a71b4a27830..ce016ca8ce35af4814b089f8ce2cde616c582b29 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
@@ -343,6 +343,13 @@ void GLES2DecoderTestBase::InitDecoderWithCommandLine(
         .RetiresOnSaturation();
   }
 
+  if (!group_->feature_info()->gl_version_info().is_es &&
+      group_->feature_info()->feature_flags().ext_framebuffer_srgb) {
+    EXPECT_CALL(*gl_, Enable(GL_FRAMEBUFFER_SRGB))
+        .Times(1)
+        .RetiresOnSaturation();
+  }
+
   static GLint max_viewport_dims[] = {
     kMaxViewportWidth,
     kMaxViewportHeight