Reusing base::IdType<...> to implement SurfaceId.

mojo/converters/surfaces/tests/surface_unittest.cc

Index: mojo/converters/surfaces/tests/surface_unittest.cc
diff --git a/mojo/converters/surfaces/tests/surface_unittest.cc b/mojo/converters/surfaces/tests/surface_unittest.cc
index 3d0694b18a72091c20f3b3d8b4b1f15df0b475a8..f085ff1b4c71452b71e7f6ff4c72ed87ab7b547f 100644
--- a/mojo/converters/surfaces/tests/surface_unittest.cc
+++ b/mojo/converters/surfaces/tests/surface_unittest.cc
@@ -68,7 +68,7 @@ TEST(SurfaceLibTest, SurfaceIdConverterNullId) {
 }
 
 TEST(SurfaceLibTest, SurfaceIdConverterValidId) {
-  cc::SurfaceId valid_id(7);
+  cc::SurfaceId valid_id = cc::SurfaceId::FromUnsafeValue(7);
   cc::SurfaceId round_trip = SurfaceId::From(valid_id).To<cc::SurfaceId>();
   EXPECT_FALSE(round_trip.is_null());
   EXPECT_EQ(valid_id, round_trip);
@@ -129,7 +129,7 @@ TEST_F(SurfaceLibQuadTest, ColorQuad) {
 TEST_F(SurfaceLibQuadTest, SurfaceQuad) {
   cc::SurfaceDrawQuad* surface_quad =
       pass->CreateAndAppendDrawQuad<cc::SurfaceDrawQuad>();
-  cc::SurfaceId arbitrary_id(5);
+  cc::SurfaceId arbitrary_id = cc::SurfaceId::FromUnsafeValue(5);
   surface_quad->SetAll(
       sqs, rect, opaque_rect, visible_rect, needs_blending, arbitrary_id);
 
@@ -288,7 +288,7 @@ TEST(SurfaceLibTest, RenderPass) {
 
   cc::SurfaceDrawQuad* surface_quad =
       pass->CreateAndAppendDrawQuad<cc::SurfaceDrawQuad>();
-  cc::SurfaceId arbitrary_id(5);
+  cc::SurfaceId arbitrary_id = cc::SurfaceId::FromUnsafeValue(5);
   surface_quad->SetAll(
       sqs, rect, opaque_rect, visible_rect, needs_blending, arbitrary_id);