[APP-3834] Backport react-native#59748: stop Content Capture rebuilding accessibility subtrees

patches/react-native/pr-59748-1e10181fc9.patch

@@ -0,0 +1,14 @@
+diff --git a/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt b/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt
+index e6c12f6..4541ff3 100644
+--- a/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt
++++ b/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt
+@@ -995,7 +995,8 @@ public open class ReactAccessibilityDelegate( // The View this delegate is attac
+               isSpeakingNode(childNodeInfo, child) &&
+                   !isAccessibilityFocusable(childNodeInfo, child)
+           ) {
+-            val childNodeDescription = getTalkbackDescription(child, null)
++            // Initializing this node again can recursively synthesize its entire subtree again.
++            val childNodeDescription = getTalkbackDescription(child, childNodeInfo)
+             if (!childNodeDescription.isNullOrEmpty()) {
+               concatChildDescription.append(childNodeDescription.toString() + delimiter)
+             }

patches/react-native/pr-59748-1e10181fc9.patch.md

@@ -0,0 +1,29 @@
+## ReactAccessibilityDelegate.kt Patch - Content Capture rebuilds accessibility subtrees on the UI thread
+
+On Pixels running Android 16 and 17, Content Capture builds an
+`AccessibilityNodeInfo` for every view that appears, on the UI thread, whether
+or not an accessibility service is on. Every app gets a session through
+Android's scam detection. For React Native views this goes through
+`ReactAccessibilityDelegate.getTalkbackDescription`, which initializes each
+child's node to check whether it speaks, then calls itself with `null` for that
+child. The recursive call builds and initializes the same node again, all the
+way down the subtree, so the work grows exponentially with nesting depth.
+
+Upstream issue, with a public repro and profiles:
+https://github.com/react/react-native/issues/59743 (100–280ms freezes when a
+screen re-appears). We found the same cost while profiling the Home feed's list
+on a Pixel 7a (APP-3833): Content Capture was about 20–25% of the main thread
+while scrolling, and RN's text accessibility delegate alone about 14%.
+
+Backport of https://github.com/react/react-native/pull/59748: pass the node the
+loop already initialized instead of `null`. In 0.88.1,
+`createNodeInfoFromView` is exactly `AccessibilityNodeInfoCompat.obtain()` plus
+`ViewCompat.onInitializeAccessibilityNodeInfo`, which is what the loop just did
+for `childNodeInfo`. `getTalkbackDescription` copies the node it is given with
+`obtain(info)` and never recycles it, so descriptions are unchanged. The PR's
+test fixture of 8 nested groups goes from 511 node initializations to 9.
+
+The PR is open and unreviewed; the hash in the file name is its head commit,
+`1e10181fc9041e7e0dfc5810d31ed31731675646`.
+
+**TODO: Remove once a React Native release contains #59748.**

patches/react-native@0.88.1.patch

@@ -314,6 +314,20 @@ index 0a1ea2abc558505f734b584066feef723bb93c00..97d829a24760741d1a3d8cbfa5c6b4c8
          }
        }
        into(hermesDir)
+diff --git a/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt b/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt
+index e6c12f6368e4d43aae88b594386ec1b5b10ab43a..4541ff34f8fc41011064fa681937efa3e9a1acb0 100644
+--- a/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt
++++ b/ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.kt
+@@ -995,7 +995,8 @@ public open class ReactAccessibilityDelegate( // The View this delegate is attac
+               isSpeakingNode(childNodeInfo, child) &&
+                   !isAccessibilityFocusable(childNodeInfo, child)
+           ) {
+-            val childNodeDescription = getTalkbackDescription(child, null)
++            // Initializing this node again can recursively synthesize its entire subtree again.
++            val childNodeDescription = getTalkbackDescription(child, childNodeInfo)
+             if (!childNodeDescription.isNullOrEmpty()) {
+               concatChildDescription.append(childNodeDescription.toString() + delimiter)
+             }
 diff --git a/ReactAndroid/src/main/java/com/facebook/react/views/view/ReactViewGroup.kt b/ReactAndroid/src/main/java/com/facebook/react/views/view/ReactViewGroup.kt
 index ae2e36ca1ed64d9f6cb44e6c2519a17fcca3ca18..0eeeb63b1225a3c575abb257a79aaef609659e2f 100644
 --- a/ReactAndroid/src/main/java/com/facebook/react/views/view/ReactViewGroup.kt