[cc] Set BeginFrame sequence numbers on CompositorFrames from Scheduler.

cc/scheduler/scheduler_state_machine_unittest.cc

 // Copyright 2011 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/scheduler/scheduler_state_machine.h"
 
 #include <stddef.h>
 
 #include "base/trace_event/trace_event.h"
 #include "cc/output/begin_frame_args.h"
@@ skipping 163 matching lines @@
 
   uint64_t begin_frame_sequence_number() const {
     return begin_frame_sequence_number_;
   }
   uint64_t last_begin_frame_sequence_number_begin_main_frame_sent() const {
     return last_begin_frame_sequence_number_begin_main_frame_sent_;
   }
   uint64_t last_begin_frame_sequence_number_pending_tree_was_fresh() const {
     return last_begin_frame_sequence_number_pending_tree_was_fresh_;
   }
-  uint64_t last_begin_frame_sequence_number_active_tree_was_fresh() const {
-    return last_begin_frame_sequence_number_active_tree_was_fresh_;
-  }
 
   using SchedulerStateMachine::ShouldTriggerBeginImplFrameDeadlineImmediately;
   using SchedulerStateMachine::ProactiveBeginFrameWanted;
   using SchedulerStateMachine::WillCommit;
 
  protected:
   DrawResult draw_result_for_test_;
   uint64_t next_begin_frame_number_ = BeginFrameArgs::kStartingFrameNumber;
 };
 
@@ skipping 2533 matching lines @@
   state.OnBeginImplFrameDeadline();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_SEQUENCE_NUMBERS(10u, 10u, 10u, BeginFrameArgs::kInvalidFrameNumber,
                           BeginFrameArgs::kInvalidFrameNumber);
   state.OnBeginImplFrameIdle();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 }  // namespace
 }  // namespace cc