Hook up ui::Compositor to Display's BeginFrameSource

cc/surfaces/surface_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_factory_client.h"
+#include "cc/surfaces/surface_id_allocator.h"
 #include "cc/surfaces/surface_manager.h"
 #include "cc/test/scheduler_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace cc {
 namespace {
 
 class FakeSurfaceFactoryClient : public SurfaceFactoryClient {
  public:
@@ skipping 19 matching lines @@
   SurfaceId surface_id(6);
   {
     factory.Create(surface_id);
     EXPECT_TRUE(manager.GetSurfaceForId(surface_id));
     factory.Destroy(surface_id);
   }
 
   EXPECT_EQ(NULL, manager.GetSurfaceForId(surface_id));
 }
 
+TEST(SurfaceTest, SurfaceIds) {
+  uint32_t namespaces[] = {0, 37, ~0};
+  for (size_t i = 0; i < 3; ++i) {
+    uint32_t id_namespace = namespaces[i];
+    SurfaceIdAllocator allocator(id_namespace);
+    SurfaceId id1 = allocator.GenerateId();
+    EXPECT_EQ(id1.id_namespace(), id_namespace);
+    SurfaceId id2 = allocator.GenerateId();
+    EXPECT_EQ(id2.id_namespace(), id_namespace);
+    EXPECT_NE(id1.id, id2.id);
+  }
+}
+
 }  // namespace
 }  // namespace cc