Add experiment for preventing thread priority reset if the initial raise did not succeed

Summary:
Currently, we will attempt to reset the thread priority no matter what if the thread priority raising was attempted

If the attempt to raise failed, there is no need to go through the process of reseting the thread priority

 ---

This is written up in a way that should only expose users into the experiment that fail to raise the thread priority

Reviewed By: wesleyer

Differential Revision: D75983483

fbshipit-source-id: eeb98b2b3ffaf8bf5ad1f013e69d27f53d6edc19

Author: Case Beaman

litho-core/src/main/java/com/facebook/litho/TreeFuture.kt

@@ -300,7 +300,9 @@ abstract class TreeFuture<T : PotentiallyPartialResult>(
       val threadPriorityPair = tryRaiseThreadPriority(runningThreadId, desiredPriority)
       originalThreadPriority = threadPriorityPair.first
       raisedThreadPriority = threadPriorityPair.second
-      didRaiseThreadPriority = true
+      didRaiseThreadPriority =
+          originalThreadPriority != raisedThreadPriority ||
+              !ComponentsConfiguration.enablePreventPriorityResetOnRaiseFailure
     } else {
       originalThreadPriority = Process.THREAD_PRIORITY_DEFAULT
       raisedThreadPriority = Process.THREAD_PRIORITY_DEFAULT

litho-core/src/main/java/com/facebook/litho/config/ComponentsConfiguration.kt

@@ -289,6 +289,12 @@ internal constructor(
      */
     @JvmField var enableRaisePriorityToMain: Boolean = false
 
+    /**
+     * This flag will prevent attempting to reset thread priority when the original priority raising
+     * failed to succeed.
+     */
+    @JvmField var enablePreventPriorityResetOnRaiseFailure: Boolean = false
+
     /** This config will enable logging of interactable components with 0 alpha */
     @JvmField var isZeroAlphaLoggingEnabled: Boolean = false