Allow user to pause/resume incognito downloads

chrome/android/javatests/src/org/chromium/chrome/browser/download/MockDownloadNotificationService.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/download/MockDownloadNotificationService.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/download/MockDownloadNotificationService.java b/chrome/android/javatests/src/org/chromium/chrome/browser/download/MockDownloadNotificationService.java
index 5e20c3e4025d68d8083cbe9638c56d7e8d179108..f5ff32cc6bd7a3f5bf5767fc508cb3fea0bef33d 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/download/MockDownloadNotificationService.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/download/MockDownloadNotificationService.java
@@ -18,6 +18,7 @@ public class MockDownloadNotificationService extends DownloadNotificationService
     private boolean mPaused = false;
     private Context mContext;
     private int mLastNotificationId;
+    private String mFailedDownloadGuid;
 
     void setContext(Context context) {
         mContext = context;
@@ -50,10 +51,20 @@ public class MockDownloadNotificationService extends DownloadNotificationService
         mNotificationIds.remove(Integer.valueOf(notificationId));
     }
 
+    @Override
+    public void notifyDownloadFailed(String downloadGuid, String fileName) {
+        super.notifyDownloadFailed(downloadGuid, fileName);
+        mFailedDownloadGuid = downloadGuid;
+    }
+
     public int getLastAddedNotificationId() {
         return mLastNotificationId;
     }
 
+    public String getFailedDownloadGuid() {
+        return mFailedDownloadGuid;
+    }
+
     @Override
     public Context getApplicationContext() {
         return mContext == null ? super.getApplicationContext() : mContext;