Fabric: Changing signature of ComponentDescriptor::createState

Summary:
This is pure syntactic change. Often we don't have a shared pointer to ShadowNodeFamily and only have just a reference. At the same time, `ComponentDescriptor::createState` does not have to accept a shared pointer. So, it's better to accept just a reference.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: sammy-SC

Differential Revision: D20578787

fbshipit-source-id: 905277001e096d41e75007575b59ea2ea15fbf4b

ReactCommon/fabric/core/componentdescriptor/ComponentDescriptor.h

@@ -116,7 +116,7 @@ class ComponentDescriptor {
    * State's data.
    */
   virtual State::Shared createState(
-      ShadowNodeFamily::Shared const &family,
+      ShadowNodeFamily const &family,
       const StateData::Shared &data) const = 0;
 
   /*

ReactCommon/fabric/core/componentdescriptor/ConcreteComponentDescriptor.h

@@ -133,7 +133,7 @@ class ConcreteComponentDescriptor : public ComponentDescriptor {
   }
 
   virtual State::Shared createState(
-      ShadowNodeFamily::Shared const &family,
+      ShadowNodeFamily const &family,
       StateData::Shared const &data) const override {
     if (std::is_same<ConcreteStateData, StateData>::value) {
       // Default case: Returning `null` for nodes that don't use `State`.
@@ -144,7 +144,7 @@ class ConcreteComponentDescriptor : public ComponentDescriptor {
 
     return std::make_shared<ConcreteState const>(
         std::static_pointer_cast<ConcreteStateData const>(data),
-        *family->getMostRecentState());
+        *family.getMostRecentState());
   }
 
   virtual ShadowNodeFamily::Shared createFamily(

ReactCommon/fabric/uimanager/UIManager.cpp

@@ -234,7 +234,7 @@ void UIManager::updateState(StateUpdate const &stateUpdate) const {
                 auto newData =
                     callback(oldShadowNode.getState()->getDataPointer());
                 auto newState =
-                    componentDescriptor.createState(family, newData);
+                    componentDescriptor.createState(*family, newData);
 
                 return oldShadowNode.clone({
                     /* .props = */ ShadowNodeFragment::propsPlaceholder(),