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

components/autofill/content/renderer/password_autofill_agent.h

 // 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.
 
 #ifndef COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 109 matching lines @@
 
     DISALLOW_COPY_AND_ASSIGN(PasswordValueGatekeeper);
   };
 
   // RenderViewObserver:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void DidStartProvisionalLoad(blink::WebLocalFrame* frame) OVERRIDE;
   virtual void DidStartLoading() OVERRIDE;
   virtual void DidFinishDocumentLoad(blink::WebLocalFrame* frame) OVERRIDE;
   virtual void DidFinishLoad(blink::WebLocalFrame* frame) OVERRIDE;
+  virtual void DidStopLoading() OVERRIDE;
   virtual void FrameDetached(blink::WebFrame* frame) OVERRIDE;
   virtual void FrameWillClose(blink::WebFrame* frame) OVERRIDE;
   virtual void WillSendSubmitEvent(blink::WebLocalFrame* frame,
                                    const blink::WebFormElement& form) OVERRIDE;
   virtual void WillSubmitForm(blink::WebLocalFrame* frame,
                               const blink::WebFormElement& form) OVERRIDE;
 
   // RenderView IPC handlers:
   void OnFillPasswordForm(const PasswordFormFillData& form_data);
   void OnSetLoggingState(bool active);
@@ skipping 71 matching lines @@
 
   // True indicates that the username field was autofilled, false otherwise.
   bool was_username_autofilled_;
   // True indicates that the password field was autofilled, false otherwise.
   bool was_password_autofilled_;
 
   // Records original starting point of username element's selection range
   // before preview.
   int username_selection_start_;
 
+  // True indicates that all frames in a page have been rendered.
+  bool did_stop_loading_;
+
   base::WeakPtrFactory<PasswordAutofillAgent> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordAutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_