Remove RequestAnimationFrame from mojo, add delayed tasks to RunLoop

mojo/public/cpp/utility/tests/run_loop_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 "mojo/public/cpp/utility/run_loop.h"
 
 #include <string>
 
 #include "mojo/public/cpp/system/core.h"
 #include "mojo/public/cpp/test_support/test_utils.h"
@@ skipping 266 matching lines @@
   handler.WriteSignal();
   run_loop.Run();
 
   EXPECT_TRUE(handler.reached_depth_limit());
   // Got MOJO_RESULT_DEADLINE_EXCEEDED once then removed from the
   // RunLoop's handler list.
   EXPECT_EQ(handler.error_count(), 1);
   EXPECT_EQ(handler.last_error_result(), MOJO_RESULT_DEADLINE_EXCEEDED);
 }
 
+struct Task {
+  Task(int num, std::vector<int>* sequence) : num(num), sequence(sequence) {}
+
+  void Run() const { sequence->push_back(num); }
+
+  int num;
+  std::vector<int>* sequence;
+};
+
+TEST_F(RunLoopTest, DelayedTaskOrder) {
+  std::vector<int> sequence;
+  RunLoop run_loop;
+  run_loop.PostDelayedTask(Closure(Task(1, &sequence)), 0);
+  run_loop.PostDelayedTask(Closure(Task(2, &sequence)), 0);
+  run_loop.PostDelayedTask(Closure(Task(3, &sequence)), 0);
+  run_loop.RunUntilIdle();
+
+  ASSERT_EQ(3u, sequence.size());
+  EXPECT_EQ(1, sequence[0]);
+  EXPECT_EQ(2, sequence[1]);
+  EXPECT_EQ(3, sequence[2]);
+}
+
 }  // namespace
 }  // namespace mojo