Fix html_viewer crash in cc when logging into gmail.

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 10e1b4114d957f4b6fff4ced676a2caf5a3c4d93..465bee3d3e8c98ea2808aea9fefb4c944598f117 100644
--- a/mojo/converters/surfaces/tests/surface_unittest.cc
+++ b/mojo/converters/surfaces/tests/surface_unittest.cc
@@ -287,7 +287,7 @@ TEST(SurfaceLibTest, RenderPass) {
 
   PassPtr mojo_pass = Pass::From(*pass);
   ASSERT_FALSE(mojo_pass.is_null());
-  EXPECT_EQ(6, mojo_pass->id);
+  EXPECT_EQ(6, mojo_pass->id->index);
   EXPECT_EQ(Rect::From(output_rect), mojo_pass->output_rect);
   EXPECT_EQ(Rect::From(damage_rect), mojo_pass->damage_rect);
   EXPECT_EQ(Transform::From(transform_to_root_target),