cc: Only add surface ID to embedded_surfaces if fallback does not match

cc/layers/surface_layer_impl_unittest.cc

Index: cc/layers/surface_layer_impl_unittest.cc
diff --git a/cc/layers/surface_layer_impl_unittest.cc b/cc/layers/surface_layer_impl_unittest.cc
index 354972607003664456dde60d23ac37703485ab76..cca6a784ef301a1a34c5bad1293fcde5a8b3eb2c 100644
--- a/cc/layers/surface_layer_impl_unittest.cc
+++ b/cc/layers/surface_layer_impl_unittest.cc
@@ -292,7 +292,11 @@ TEST(SurfaceLayerImplTest,
   std::unique_ptr<RenderPass> render_pass = RenderPass::Create();
   AppendQuadsData data;
   surface_layer_impl->AppendQuads(render_pass.get(), &data);
-  EXPECT_THAT(data.embedded_surfaces, UnorderedElementsAre(surface_id1));
+  // SurfaceLayerImpl should not add a surface ID to the embedded_surfaces
+  // vector if it is also a fallback surface. The fallback surface will already
+  // be added as a reference in referenced_surfaces. Since the fallback is known
+  // to exist, then it isn't a dependency.
+  EXPECT_THAT(data.embedded_surfaces, testing::IsEmpty());
 
   ASSERT_EQ(1u, render_pass->quad_list.size());
   const SurfaceDrawQuad* surface_draw_quad1 =