Revert of cc: Control defer_commits logic by Scheduler

cc/scheduler/commit_earlyout_reason.h

 // 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.
 
 #ifndef CC_SCHEDULER_COMMIT_EARLYOUT_REASON_H_
 #define CC_SCHEDULER_COMMIT_EARLYOUT_REASON_H_
 
 #include "base/logging.h"
 
 namespace cc {
 
 enum class CommitEarlyOutReason {
   ABORTED_OUTPUT_SURFACE_LOST,
   ABORTED_NOT_VISIBLE,
-  ABORTED_DEFERRED_COMMIT,
   FINISHED_NO_UPDATES,
 };
 
 inline const char* CommitEarlyOutReasonToString(CommitEarlyOutReason reason) {
   switch (reason) {
     case CommitEarlyOutReason::ABORTED_OUTPUT_SURFACE_LOST:
       return "CommitEarlyOutReason::ABORTED_OUTPUT_SURFACE_LOST";
     case CommitEarlyOutReason::ABORTED_NOT_VISIBLE:
       return "CommitEarlyOutReason::ABORTED_NOT_VISIBLE";
-    case CommitEarlyOutReason::ABORTED_DEFERRED_COMMIT:
-      return "CommitEarlyOutReason::ABORTED_DEFERRED_COMMIT";
     case CommitEarlyOutReason::FINISHED_NO_UPDATES:
       return "CommitEarlyOutReason::FINISHED_NO_UPDATES";
   }
   NOTREACHED();
   return "???";
 }
 
 inline bool CommitEarlyOutHandledCommit(CommitEarlyOutReason reason) {
   return reason == CommitEarlyOutReason::FINISHED_NO_UPDATES;
 }
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_COMMIT_EARLYOUT_REASON_H_