cc: Move pre-decodes to background worker.

cc/test/fake_layer_tree_host_impl_client.h

 // Copyright 2012 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_TEST_FAKE_LAYER_TREE_HOST_IMPL_CLIENT_H_
 #define CC_TEST_FAKE_LAYER_TREE_HOST_IMPL_CLIENT_H_
 
 #include "cc/output/begin_frame_args.h"
 #include "cc/trees/layer_tree_host_impl.h"
 
 namespace cc {
 
 class FakeLayerTreeHostImplClient : public LayerTreeHostImplClient {
  public:
   // LayerTreeHostImplClient implementation.
   void DidLoseLayerTreeFrameSinkOnImplThread() override {}
   void SetBeginFrameSource(BeginFrameSource* source) override {}
   void DidReceiveCompositorFrameAckOnImplThread() override {}
   void OnCanDrawStateChanged(bool can_draw) override {}
-  void NotifyReadyToActivate() override {}
-  void NotifyReadyToDraw() override {}
+  void NotifyReadyToActivate() override;
+  void NotifyReadyToDraw() override;
   void SetNeedsRedrawOnImplThread() override {}
   void SetNeedsOneBeginImplFrameOnImplThread() override {}
   void SetNeedsCommitOnImplThread() override {}
   void SetNeedsPrepareTilesOnImplThread() override {}
   void SetVideoNeedsBeginFrames(bool needs_begin_frames) override {}
   void PostAnimationEventsToMainThreadOnImplThread(
       std::unique_ptr<MutatorEvents> events) override;
   bool IsInsideDraw() override;
   void RenewTreePriority() override {}
   void PostDelayedAnimationTaskOnImplThread(const base::Closure& task,
                                             base::TimeDelta delay) override {}
   void DidActivateSyncTree() override {}
   void WillPrepareTiles() override {}
   void DidPrepareTiles() override {}
   void DidCompletePageScaleAnimationOnImplThread() override {}
   void OnDrawForLayerTreeFrameSink(bool resourceless_software_draw) override {}
   void NeedsImplSideInvalidation() override;
   void RequestBeginMainFrameNotExpected(bool new_state) override {}
   void NotifyImageDecodeRequestFinished() override {}
 
   void reset_did_request_impl_side_invalidation() {
     did_request_impl_side_invalidation_ = false;
   }
   bool did_request_impl_side_invalidation() const {
     return did_request_impl_side_invalidation_;
   }
 
+  void reset_ready_to_activate() { ready_to_activate_ = false; }
+  bool ready_to_activate() const { return ready_to_activate_; }
+
+  void reset_ready_to_draw() { ready_to_draw_ = false; }
+  bool ready_to_draw() const { return ready_to_draw_; }
+
  private:
   bool did_request_impl_side_invalidation_ = false;
+  bool ready_to_activate_ = false;
+  bool ready_to_draw_ = false;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_LAYER_TREE_HOST_IMPL_CLIENT_H_