cc: Optimize decode scheduling for checker-images.

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"
 
@@ skipping 17 matching lines @@
       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 OnDrawForCompositorFrameSink(bool resourceless_software_draw) override {}
-  void NeedsImplSideInvalidation() override {}
+  void NeedsImplSideInvalidation() 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_;
+  }
+
+ private:
+  bool did_request_impl_side_invalidation_ = false;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_LAYER_TREE_HOST_IMPL_CLIENT_H_