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

cc/scheduler/scheduler_state_machine.h

 // 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.
 
 #ifndef CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_
 #define CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 272 matching lines @@
   bool did_submit_in_last_frame() const { return did_submit_in_last_frame_; }
 
   bool needs_impl_side_invalidation() const {
     return needs_impl_side_invalidation_;
   }
   bool previous_pending_tree_was_impl_side() const {
     return previous_pending_tree_was_impl_side_;
   }
 
   uint32_t begin_frame_source_id() const { return begin_frame_source_id_; }
+  uint64_t last_begin_frame_sequence_number_active_tree_was_fresh() const {
+    return last_begin_frame_sequence_number_active_tree_was_fresh_;
+  }
   uint64_t last_begin_frame_sequence_number_compositor_frame_was_fresh() const {
     return last_begin_frame_sequence_number_compositor_frame_was_fresh_;
   }
 
  protected:
   bool BeginFrameRequiredForAction() const;
   bool BeginFrameNeededForVideo() const;
   bool ProactiveBeginFrameWanted() const;
 
   bool ShouldPerformImplSideInvalidation() const;
@@ skipping 90 matching lines @@
   bool previous_pending_tree_was_impl_side_;
   bool current_pending_tree_is_impl_side_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine);
 };
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_