Fix recovery flow

 Bug: 5096566

Change-Id: Ib7b7e24d5953d02c5e824fc9ef74468fe80480ec
diff --git a/src/com/android/browser/CrashRecoveryHandler.java b/src/com/android/browser/CrashRecoveryHandler.java
index fdcdbc6..319ff89 100644
--- a/src/com/android/browser/CrashRecoveryHandler.java
+++ b/src/com/android/browser/CrashRecoveryHandler.java
@@ -243,11 +243,13 @@
             mRecoveryState = loadCrashState();
             mShouldPrompt = shouldPrompt();
         }
-        if (mShouldPrompt) {
-            promptToRecover(mRecoveryState, intent);
-            return;
-        } else {
-            updateLastRecovered();
+        if (mRecoveryState != null && !mRecoveryState.isEmpty()) {
+            if (mShouldPrompt) {
+                promptToRecover(mRecoveryState, intent);
+                return;
+            } else {
+                updateLastRecovered();
+            }
         }
         mController.doStart(mRecoveryState, intent);
         mRecoveryState = null;