Turn on seamless cubemap by default on Desktop GL for ES3.

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 e3c06275530b905df586af6a4766f38dce85b907..cbe3112b391c27784afa0907da0db34d7d83b70c 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
@@ -351,6 +351,12 @@ void GLES2DecoderTestBase::InitDecoderWithCommandLine(
         .RetiresOnSaturation();
   }
 
+  if (group_->feature_info()->gl_version_info().IsAtLeastGL(3, 2)) {
+    EXPECT_CALL(*gl_, Enable(GL_TEXTURE_CUBE_MAP_SEAMLESS))
+        .Times(1)
+        .RetiresOnSaturation();
+  }
+
   static GLint max_viewport_dims[] = {
     kMaxViewportWidth,
     kMaxViewportHeight