Temporary fix for CWS client redirect issue to undo a regression.

This re-introduces a smaller bug fixed by r231370 until the underlying
problem in WebDataSource::replacesCurrentHistoryItem is resolved.

BUG=313572, 311271
TEST=Try to add an app in CWS when not signed in.  Go back from signin page.
R=nasko@chromium.org

Review URL: https://codereview.chromium.org/59073010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233454 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/web_contents/web_contents_impl.cc

@@ -3156,6 +3156,13 @@ void WebContentsImpl::RequestTransferURL(
 
     // Navigations in Web UI pages count as browser-initiated navigations.
     params.is_renderer_initiated = false;
+
+    // TODO(creis): Remove this line.  In the short term, it fixes a regression
+    // (http://crbug.com/313572) by partially reverting r231370.
+    // The underlying problem is that WebDataSource::replacesCurrentHistoryItem
+    // should be returning false when the CWS goes to the sign-in page.
+    // See http://crbug.com/311721.
+    params.should_replace_current_entry = false;
   }
 
   new_contents = OpenURL(params);