Revert^2 "Cache Java codegen'd flags in static member variables."

This reverts commit efda207c09.

Reason for revert: this unrevert contains the fix for b/311187402

Test: cargo test
Change-Id: I210aebd30edd864a7c141ede336c12aebf4f1fcd

tools/aconfig/src/codegen_rust.rs

@@ -104,6 +104,12 @@ lazy_static::lazy_static! {
         "com.android.aconfig.test.disabled_rw",
         "false") == "true";
 
+    /// flag value cache for disabled_rw_2
+    static ref CACHED_disabled_rw_2: bool = flags_rust::GetServerConfigurableFlag(
+        "aconfig_flags.other_namespace",
+        "com.android.aconfig.test.disabled_rw_2",
+        "false") == "true";
+
     /// flag value cache for enabled_rw
     static ref CACHED_enabled_rw: bool = flags_rust::GetServerConfigurableFlag(
         "aconfig_flags.aconfig_test",
@@ -122,6 +128,11 @@ impl FlagProvider {
         *CACHED_disabled_rw
     }
 
+    /// query flag disabled_rw_2
+    pub fn disabled_rw_2(&self) -> bool {
+        *CACHED_disabled_rw_2
+    }
+
     /// query flag enabled_fixed_ro
     pub fn enabled_fixed_ro(&self) -> bool {
         true
@@ -153,6 +164,12 @@ pub fn disabled_rw() -> bool {
     PROVIDER.disabled_rw()
 }
 
+/// query flag disabled_rw_2
+#[inline(always)]
+pub fn disabled_rw_2() -> bool {
+    PROVIDER.disabled_rw_2()
+}
+
 /// query flag enabled_fixed_ro
 #[inline(always)]
 pub fn enabled_fixed_ro() -> bool {
@@ -211,6 +228,21 @@ impl FlagProvider {
         self.overrides.insert("disabled_rw", val);
     }
 
+    /// query flag disabled_rw_2
+    pub fn disabled_rw_2(&self) -> bool {
+        self.overrides.get("disabled_rw_2").copied().unwrap_or(
+            flags_rust::GetServerConfigurableFlag(
+                "aconfig_flags.other_namespace",
+                "com.android.aconfig.test.disabled_rw_2",
+                "false") == "true"
+        )
+    }
+
+    /// set flag disabled_rw_2
+    pub fn set_disabled_rw_2(&mut self, val: bool) {
+        self.overrides.insert("disabled_rw_2", val);
+    }
+
     /// query flag enabled_fixed_ro
     pub fn enabled_fixed_ro(&self) -> bool {
         self.overrides.get("enabled_fixed_ro").copied().unwrap_or(
@@ -285,6 +317,18 @@ pub fn set_disabled_rw(val: bool) {
     PROVIDER.lock().unwrap().set_disabled_rw(val);
 }
 
+/// query flag disabled_rw_2
+#[inline(always)]
+pub fn disabled_rw_2() -> bool {
+    PROVIDER.lock().unwrap().disabled_rw_2()
+}
+
+/// set flag disabled_rw_2
+#[inline(always)]
+pub fn set_disabled_rw_2(val: bool) {
+    PROVIDER.lock().unwrap().set_disabled_rw_2(val);
+}
+
 /// query flag enabled_fixed_ro
 #[inline(always)]
 pub fn enabled_fixed_ro() -> bool {