CC Animation: Move PropertyAnimationState and TargetProperty to trees.

cc/trees/target_property.h

Index: cc/trees/target_property.h
diff --git a/cc/animation/target_property.h b/cc/trees/target_property.h
similarity index 84%
rename from cc/animation/target_property.h
rename to cc/trees/target_property.h
index 632e826a00ca66a2bd81c14d7259c916850c50e3..34ddf3fd7cc439fad51bb29d7f2a717516f78ae9 100644
--- a/cc/animation/target_property.h
+++ b/cc/trees/target_property.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CC_ANIMATION_TARGET_PROPERTY_H_
-#define CC_ANIMATION_TARGET_PROPERTY_H_
+#ifndef CC_TREES_TARGET_PROPERTY_H_
+#define CC_TREES_TARGET_PROPERTY_H_
 
 #include <bitset>
 
@@ -31,4 +31,4 @@ using TargetProperties = std::bitset<TargetProperty::LAST_TARGET_PROPERTY + 1>;
 
 }  // namespace cc
 
-#endif  // CC_ANIMATION_TARGET_PROPERTY_H_
+#endif  // CC_TREES_TARGET_PROPERTY_H_