blimp: Update page load status update indicator to use first paint.

cc/trees/layer_tree_host.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_TREES_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 384 matching lines @@
   bool AnimationStartScale(const Layer* layer, float* start_scale) const;
   bool HasAnyAnimationTargetingProperty(const Layer* layer,
                                         TargetProperty::Type property) const;
   bool AnimationsPreserveAxisAlignment(const Layer* layer) const;
   bool HasAnyAnimation(const Layer* layer) const;
   bool HasActiveAnimationForTesting(const Layer* layer) const;
 
   // Serializes the parts of this LayerTreeHost that is needed for a commit to a
   // protobuf message. Not all members are serialized as they are not helpful
   // for remote usage.
-  void ToProtobufForCommit(proto::LayerTreeHost* proto);
+  // The |swap_promise_list_| is transferred to the serializer in
+  // |swap_promises|.
+  void ToProtobufForCommit(
+      proto::LayerTreeHost* proto,
+      std::vector<std::unique_ptr<SwapPromise>>* swap_promises);
 
   // Deserializes the protobuf into this LayerTreeHost before a commit. The
   // expected input is a serialized remote LayerTreeHost. After deserializing
   // the protobuf, the normal commit-flow should continue.
   void FromProtobufForCommit(const proto::LayerTreeHost& proto);
 
   bool IsSingleThreaded() const;
   bool IsThreaded() const;
   bool IsRemoteServer() const;
   bool IsRemoteClient() const;
@@ skipping 174 matching lines @@
 
   uint32_t surface_id_namespace_;
   uint32_t next_surface_sequence_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_