Receive intent callbacks without launching intents

ui/android/java/src/org/chromium/ui/base/WindowAndroid.java

Index: ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
diff --git a/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java b/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
index abd7b4bfcfa279145b31914c0b727db23d8d8098..1578cab156bea51da763869908ce6474c520f35d 100644
--- a/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
+++ b/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
@@ -185,7 +185,7 @@ public class WindowAndroid {
      * Shows an intent and returns the results to the callback object.
      * @param intent   The PendingIntent that needs to be shown.
      * @param callback The object that will receive the results for the intent.
-     * @param errorId  The ID of error string to be show if activity is paused before intent
+     * @param errorId  The ID of error string to be shown if activity is paused before intent
      *                 results, or null if no message is required.
      * @return Whether the intent was shown.
      */
@@ -197,7 +197,7 @@ public class WindowAndroid {
      * Shows an intent and returns the results to the callback object.
      * @param intent   The intent that needs to be shown.
      * @param callback The object that will receive the results for the intent.
-     * @param errorId  The ID of error string to be show if activity is paused before intent
+     * @param errorId  The ID of error string to be shown if activity is paused before intent
      *                 results, or null if no message is required.
      * @return Whether the intent was shown.
      */
@@ -209,7 +209,7 @@ public class WindowAndroid {
      * Shows an intent that could be canceled and returns the results to the callback object.
      * @param  intent   The PendingIntent that needs to be shown.
      * @param  callback The object that will receive the results for the intent.
-     * @param  errorId  The ID of error string to be show if activity is paused before intent
+     * @param  errorId  The ID of error string to be shown if activity is paused before intent
      *                  results, or null if no message is required.
      * @return A non-negative request code that could be used for finishActivity, or
      *         START_INTENT_FAILURE if failed.
@@ -224,7 +224,7 @@ public class WindowAndroid {
      * Shows an intent that could be canceled and returns the results to the callback object.
      * @param  intent   The intent that needs to be showed.
      * @param  callback The object that will receive the results for the intent.
-     * @param  errorId  The ID of error string to be show if activity is paused before intent
+     * @param  errorId  The ID of error string to be shown if activity is paused before intent
      *                  results, or null if no message is required.
      * @return A non-negative request code that could be used for finishActivity, or
      *         START_INTENT_FAILURE if failed.
@@ -235,6 +235,19 @@ public class WindowAndroid {
     }
 
     /**
+     * Adds the intent callback and returns the request code that can be used to start the intent.
+     * @param  callback The object that will receive the results from the intent.
+     * @param  errorId  The ID of error string to be shown if activity is paused before intent
+     *                  results, or null if no message is required.
+     * @return A non-negative request code that could be used for starting an intent, or
+     *         START_INTENT_FAILURE if failed.
+     */
+    public int addIntentCallback(IntentCallback callback, Integer errorId) {
+        Log.d(TAG, "Can't set intent callback as context is not an Activity");
+        return START_INTENT_FAILURE;
+    }
+
+    /**
      * Force finish another activity that you had previously started with showCancelableIntent.
      * @param requestCode The request code returned from showCancelableIntent.
      */