Don't show "Save password" prompt for a failed login

components/autofill/content/renderer/password_autofill_agent.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/autofill/content/renderer/password_autofill_agent.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
@@ skipping 214 matching lines @@
 // PasswordAutofillAgent, public:
 
 PasswordAutofillAgent::PasswordAutofillAgent(content::RenderView* render_view)
     : content::RenderViewObserver(render_view),
       usernames_usage_(NOTHING_TO_AUTOFILL),
       web_view_(render_view->GetWebView()),
       logging_state_active_(false),
       was_username_autofilled_(false),
       was_password_autofilled_(false),
       username_selection_start_(0),
+      did_stop_loading_(false),
       weak_ptr_factory_(this) {
 }
 
 PasswordAutofillAgent::~PasswordAutofillAgent() {
 }
 
 PasswordAutofillAgent::PasswordValueGatekeeper::PasswordValueGatekeeper()
     : was_user_gesture_seen_(false) {
 }
 
@@ skipping 282 matching lines @@
 
   if (password_forms.empty() && !only_visible) {
     // We need to send the PasswordFormsRendered message regardless of whether
     // there are any forms visible, as this is also the code path that triggers
     // showing the infobar.
     return;
   }
 
   if (only_visible) {
     Send(new AutofillHostMsg_PasswordFormsRendered(routing_id(),
-                                                   password_forms));
+                                                   password_forms,
+                                                   did_stop_loading_));
   } else {
     Send(new AutofillHostMsg_PasswordFormsParsed(routing_id(), password_forms));
   }
 }
 
 bool PasswordAutofillAgent::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PasswordAutofillAgent, message)
     IPC_MESSAGE_HANDLER(AutofillMsg_FillPasswordForm, OnFillPasswordForm)
     IPC_MESSAGE_HANDLER(AutofillMsg_ChangeLoggingState, OnChangeLoggingState)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void PasswordAutofillAgent::DidStartLoading() {
+  did_stop_loading_ = false;
   if (usernames_usage_ != NOTHING_TO_AUTOFILL) {
     UMA_HISTOGRAM_ENUMERATION("PasswordManager.OtherPossibleUsernamesUsage",
                               usernames_usage_,
                               OTHER_POSSIBLE_USERNAMES_MAX);
     usernames_usage_ = NOTHING_TO_AUTOFILL;
   }
 }
 
 void PasswordAutofillAgent::DidFinishDocumentLoad(blink::WebLocalFrame* frame) {
   // The |frame| contents have been parsed, but not yet rendered.  Let the
   // PasswordManager know that forms are loaded, even though we can't yet tell
   // whether they're visible.
   SendPasswordForms(frame, false);
 }
 
 void PasswordAutofillAgent::DidFinishLoad(blink::WebLocalFrame* frame) {
   // The |frame| contents have been rendered.  Let the PasswordManager know
   // which of the loaded frames are actually visible to the user.  This also
   // triggers the "Save password?" infobar if the user just submitted a password
   // form.
   SendPasswordForms(frame, true);
 }
 
+void PasswordAutofillAgent::DidStopLoading() {
+  did_stop_loading_ = true;
+}
+
 void PasswordAutofillAgent::FrameDetached(blink::WebFrame* frame) {
   FrameClosing(frame);
 }
 
 void PasswordAutofillAgent::FrameWillClose(blink::WebFrame* frame) {
   FrameClosing(frame);
 }
 
 void PasswordAutofillAgent::WillSendSubmitEvent(
     blink::WebLocalFrame* frame,
@@ skipping 479 matching lines @@
     username->setSelectionRange(username_selection_start_,
                                 username->value().length());
   }
   if (!password->suggestedValue().isEmpty()) {
       password->setSuggestedValue(blink::WebString());
       password->setAutofilled(was_password_autofilled_);
   }
 }
 
 }  // namespace autofill