CC Animations: Establish AnimationHost, AnimationTimeline and AnimationPlayer

cc/trees/layer_tree_mutators_client.h

Index: cc/trees/layer_tree_mutators_client.h
diff --git a/cc/trees/layer_tree_mutators_client.h b/cc/trees/layer_tree_mutators_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..9701e2036672dce091ee5f723b3a654d929345e5
--- /dev/null
+++ b/cc/trees/layer_tree_mutators_client.h
@@ -0,0 +1,41 @@
+// Copyright 2015 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_MUTATORS_CLIENT_H_
+#define CC_TREES_LAYER_TREE_MUTATORS_CLIENT_H_
+
+namespace gfx {
+class Transform;
+class ScrollOffset;
+}
+
+namespace cc {
+
+class FilterOperations;
+class Layer;
+
+class LayerTreeMutatorsClient {
+ public:
+  virtual bool IsLayerInActiveTree(int layer_id) const = 0;
+  virtual bool IsLayerInPendingTree(int layer_id) const = 0;
+  virtual void SetMutatorsNeedCommit() = 0;
+
+  virtual void SetLayerFilterMutated(int layer_id,
+                                     bool active_tree,
+                                     const FilterOperations& filters) = 0;
+  virtual void SetLayerOpacityMutated(int layer_id,
+                                      bool active_tree,
+                                      float opacity) = 0;
+  virtual void SetLayerTransformMutated(int layer_id,
+                                        bool active_tree,
+                                        const gfx::Transform& transform) = 0;
+  virtual void SetLayerScrollOffsetMutated(
+      int layer_id,
+      bool active_tree,
+      const gfx::ScrollOffset& scroll_offset) = 0;
+};
+
+}  // namespace cc
+
+#endif  // CC_TREES_LAYER_TREE_MUTATORS_CLIENT_H_