Fixes browser to store and read HTTP authentication credentials in the correct WebView.

Change-Id: Ib9831e7985232a5f362ef529d1aec2ee1e4fbecd
diff --git a/src/com/android/browser/Tab.java b/src/com/android/browser/Tab.java
index d450b50..07b17a9 100644
--- a/src/com/android/browser/Tab.java
+++ b/src/com/android/browser/Tab.java
@@ -770,8 +770,8 @@
             boolean reuseHttpAuthUsernamePassword = handler
                     .useHttpAuthUsernamePassword();
 
-            if (reuseHttpAuthUsernamePassword && mMainView != null) {
-                String[] credentials = mMainView.getHttpAuthUsernamePassword(
+            if (reuseHttpAuthUsernamePassword && view != null) {
+                String[] credentials = view.getHttpAuthUsernamePassword(
                         host, realm);
                 if (credentials != null && credentials.length == 2) {
                     username = credentials[0];