Add IntDef support to ApplicationStatus.

base/android/java/src/org/chromium/base/ApplicationStatus.java

Index: base/android/java/src/org/chromium/base/ApplicationStatus.java
diff --git a/base/android/java/src/org/chromium/base/ApplicationStatus.java b/base/android/java/src/org/chromium/base/ApplicationStatus.java
index d1bd2fb59212c814e20efda98c8113000b98ffa8..7c5bbee74f2aaec53d17e2ce37a95311ab6fadd0 100644
--- a/base/android/java/src/org/chromium/base/ApplicationStatus.java
+++ b/base/android/java/src/org/chromium/base/ApplicationStatus.java
@@ -9,6 +9,8 @@ import android.app.Application;
 import android.app.Application.ActivityLifecycleCallbacks;
 import android.os.Bundle;
 
+import org.chromium.base.ActivityState.ActivityStateEnum;
+import org.chromium.base.ApplicationState.ApplicationStateEnum;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.annotations.MainDex;
@@ -34,6 +36,7 @@ public class ApplicationStatus {
         /**
          * @return The current {@link ActivityState} of the activity.
          */
+        @ActivityStateEnum
         public int getStatus() {
             return mStatus;
         }
@@ -41,7 +44,7 @@ public class ApplicationStatus {
         /**
          * @param status The new {@link ActivityState} of the activity.
          */
-        public void setStatus(int status) {
+        public void setStatus(@ActivityStateEnum int status) {
             mStatus = status;
         }
 
@@ -54,6 +57,7 @@ public class ApplicationStatus {
     }
 
     private static Object sCachedApplicationStateLock = new Object();
+    @ApplicationStateEnum
     private static Integer sCachedApplicationState;
 
     /** Last activity that was shown (or null if none or it was destroyed). */
@@ -89,7 +93,7 @@ public class ApplicationStatus {
          * Called when the application's state changes.
          * @param newState The application state.
          */
-        public void onApplicationStateChange(int newState);
+        public void onApplicationStateChange(@ApplicationStateEnum int newState);
     }
 
     /**
@@ -101,7 +105,7 @@ public class ApplicationStatus {
          * @param activity The activity that had a state change.
          * @param newState New activity state.
          */
-        public void onActivityStateChange(Activity activity, int newState);
+        public void onActivityStateChange(Activity activity, @ActivityStateEnum int newState);
     }
 
     private ApplicationStatus() {}
@@ -170,7 +174,7 @@ public class ApplicationStatus {
      * @param activity Current activity.
      * @param newState New state value.
      */
-    private static void onStateChange(Activity activity, int newState) {
+    private static void onStateChange(Activity activity, @ActivityStateEnum int newState) {
         if (activity == null) throw new IllegalArgumentException("null activity is not supported");
 
         if (sActivity == null
@@ -291,6 +295,7 @@ public class ApplicationStatus {
      * @param activity The activity whose state is to be returned.
      * @return The state of the specified activity (see {@link ActivityState}).
      */
+    @ActivityStateEnum
     public static int getStateForActivity(Activity activity) {
         ActivityInfo info = sActivityInfo.get(activity);
         return info != null ? info.getStatus() : ActivityState.DESTROYED;
@@ -299,6 +304,7 @@ public class ApplicationStatus {
     /**
      * @return The state of the application (see {@link ApplicationState}).
      */
+    @ApplicationStateEnum
     @CalledByNative
     public static int getStateForApplication() {
         synchronized (sCachedApplicationStateLock) {
@@ -432,6 +438,7 @@ public class ApplicationStatus {
      *         HAS_STOPPED_ACTIVITIES if none are running/paused and one is stopped.
      *         HAS_DESTROYED_ACTIVITIES if none are running/paused/stopped.
      */
+    @ApplicationStateEnum
     private static int determineApplicationState() {
         boolean hasPausedActivity = false;
         boolean hasStoppedActivity = false;
@@ -456,5 +463,5 @@ public class ApplicationStatus {
 
     // Called to notify the native side of state changes.
     // IMPORTANT: This is always called on the main thread!
-    private static native void nativeOnApplicationStateChange(int newState);
+    private static native void nativeOnApplicationStateChange(@ApplicationStateEnum int newState);
 }