[WIP] cc: Plumb SurfaceId from clients

cc/surfaces/surface_display_output_surface_unittest.cc

Index: cc/surfaces/surface_display_output_surface_unittest.cc
diff --git a/cc/surfaces/surface_display_output_surface_unittest.cc b/cc/surfaces/surface_display_output_surface_unittest.cc
index a5f530c8af5ec58f1f0e0ebdef4d45640b207416..386db67cc990b33d6cf8f834ffd2a83cdd43a8c0 100644
--- a/cc/surfaces/surface_display_output_surface_unittest.cc
+++ b/cc/surfaces/surface_display_output_surface_unittest.cc
@@ -23,7 +23,7 @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
-namespace {
+namespace test {
 
 static constexpr int kArbitraryClientId = 0;
 
@@ -36,8 +36,6 @@ class SurfaceDisplayOutputSurfaceTest : public testing::Test {
         display_size_(1920, 1080),
         display_rect_(display_size_),
         context_provider_(TestContextProvider::Create()) {
-    surface_manager_.RegisterSurfaceClientId(allocator_.client_id());
-
     std::unique_ptr<FakeOutputSurface> display_output_surface =
         FakeOutputSurface::Create3d();
     display_output_surface_ = display_output_surface.get();