Flush form cache when next document is loaded to avoid Document leak.

components/autofill/content/renderer/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_AUTOFILL_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 41 matching lines @@
   // guaranteed to outlive AutofillAgent.
   AutofillAgent(content::RenderView* render_view,
                 PasswordAutofillAgent* password_autofill_manager,
                 PasswordGenerationAgent* password_generation_agent);
   virtual ~AutofillAgent();
 
  private:
   // content::RenderViewObserver:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void DidFinishDocumentLoad(blink::WebLocalFrame* frame) OVERRIDE;
+  virtual void DidCommitProvisionalLoad(blink::WebLocalFrame* frame,
+                                        bool is_new_navigation) OVERRIDE;
   virtual void FrameDetached(blink::WebFrame* frame) OVERRIDE;
   virtual void FrameWillClose(blink::WebFrame* frame) OVERRIDE;
   virtual void WillSubmitForm(blink::WebLocalFrame* frame,
                               const blink::WebFormElement& form) OVERRIDE;
   virtual void ZoomLevelChanged() OVERRIDE;
   virtual void DidChangeScrollOffset(blink::WebLocalFrame* frame) OVERRIDE;
   virtual void FocusedNodeChanged(const blink::WebNode& node) OVERRIDE;
   virtual void OrientationChangeEvent() OVERRIDE;
 
   // PageClickListener:
@@ skipping 178 matching lines @@
                            NoCancelOnSubframeNavigateAfterDone);
   FRIEND_TEST_ALL_PREFIXES(RequestAutocompleteRendererTest,
                            InvokingTwiceOnlyShowsOnce);
 
   DISALLOW_COPY_AND_ASSIGN(AutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_