cc: Abort frame when becoming invisible and waiting for ready to draw.

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 <string>
 
 #include "base/basictypes.h"
@@ skipping 147 matching lines @@
 
   void SetNeedsAnimate();
   bool needs_animate() const { return needs_animate_; }
 
   bool OnlyImplSideUpdatesExpected() const;
 
   // Indicates that prepare-tiles is required. This guarantees another
   // PrepareTiles will occur shortly (even if no redraw is required).
   void SetNeedsPrepareTiles();
 
-  // Make deadline wait for ReadyToDraw signal.
-  void SetWaitForReadyToDraw();
-
   // Sets how many swaps can be pending to the OutputSurface.
   void SetMaxSwapsPending(int max);
 
   // If the scheduler attempted to draw and swap, this provides feedback
   // regarding whether or not the swap actually occured. We might skip the
   // swap when there is not damage, for example.
   void DidSwapBuffers();
 
   // Indicates whether a redraw is required because we are currently rendering
   // with a low resolution or checkerboarded tile.
@@ skipping 82 matching lines @@
 
  protected:
   bool BeginFrameRequiredForAction() const;
   bool BeginFrameRequiredForChildren() const;
   bool BeginFrameNeededForVideo() const;
   bool ProactiveBeginFrameWanted() const;
 
   bool ShouldTriggerBeginImplFrameDeadlineImmediately() const;
 
   // True if we need to force activations to make forward progress.
+  // TODO(sunnyps): Rename this to ShouldAbortCurrentFrame or similar.
   bool PendingActivationsShouldBeForced() const;
 
   // TODO(brianderson): Remove this once NPAPI support is removed.
   bool SendingBeginMainFrameMightCauseDeadlock() const;
 
   bool ShouldAnimate() const;
   bool ShouldBeginOutputSurfaceCreation() const;
   bool ShouldDraw() const;
   bool ShouldActivatePendingTree() const;
   bool ShouldSendBeginMainFrame() const;
@@ skipping 54 matching lines @@
   bool active_tree_needs_first_draw_;
   bool did_create_and_initialize_first_output_surface_;
   bool impl_latency_takes_priority_;
   bool main_thread_missed_last_deadline_;
   bool skip_next_begin_main_frame_to_reduce_latency_;
   bool continuous_painting_;
   bool children_need_begin_frames_;
   bool defer_commits_;
   bool video_needs_begin_frames_;
   bool last_commit_had_no_updates_;
-  bool wait_for_active_tree_ready_to_draw_;
+  bool wait_for_ready_to_draw_;
   bool did_request_swap_in_last_frame_;
   bool did_perform_swap_in_last_draw_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine);
 };
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_