[Autofill] Migrate ContentAutofillDriver<-->AutofillAgent IPCs to mojo.

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 <memory>
 #include <vector>
 
 #include "base/macros.h"
+#include "components/autofill/content/public/interfaces/autofill_driver.mojom.h"
+#include "components/autofill/content/renderer/autofill_agent.h"
 #include "components/autofill/content/renderer/password_form_conversion_utils.h"
 #include "components/autofill/core/common/form_data_predictions.h"
 #include "components/autofill/core/common/password_form_field_prediction_map.h"
 #include "components/autofill/core/common/password_form_fill_data.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/public/renderer/render_view_observer.h"
 #include "third_party/WebKit/public/web/WebInputElement.h"
 
 namespace blink {
 class WebInputElement;
 class WebKeyboardEvent;
 class WebSecurityOrigin;
 }
 
 namespace autofill {
 
 class RendererSavePasswordProgressLogger;
 
 // This class is responsible for filling password forms.
 class PasswordAutofillAgent : public content::RenderFrameObserver {
  public:
   explicit PasswordAutofillAgent(content::RenderFrame* render_frame);
   ~PasswordAutofillAgent() override;
 
+  void SetAutofillAgent(AutofillAgent* autofill_agent);
+
   // WebFrameClient editor related calls forwarded by AutofillAgent.
   // If they return true, it indicates the event was consumed and should not
   // be used for any other autofill activity.
   bool TextFieldDidEndEditing(const blink::WebInputElement& element);
   bool TextDidChangeInTextField(const blink::WebInputElement& element);
 
   // Function that should be called whenever the value of |element| changes due
   // to user input. This is separate from TextDidChangeInTextField() as that
   // function may trigger UI and should only be called when other UI won't be
   // shown.
@@ skipping 170 matching lines @@
   void ProvisionallySavePassword(std::unique_ptr<PasswordForm> password_form,
                                  ProvisionallySaveRestriction restriction);
 
   // Returns true if |provisionally_saved_form_| has enough information that
   // it is likely filled out.
   bool ProvisionallySavedPasswordIsValid();
 
   // Helper function called when in-page navigation completed
   void OnSamePageNavigationCompleted();
 
+  const mojom::AutofillDriverPtr& GetAutofillDriver();
+
   // The logins we have filled so far with their associated info.
   WebInputToPasswordInfoMap web_input_to_password_info_;
   // A (sort-of) reverse map to |login_to_password_info_|.
   PasswordToLoginMap password_to_username_;
 
   // Set if the user might be submitting a password form on the current page,
   // but the submit may still fail (i.e. doesn't pass JavaScript validation).
   std::unique_ptr<PasswordForm> provisionally_saved_form_;
 
   // Contains the most recent text that user typed or PasswordManager autofilled
@@ skipping 11 matching lines @@
   // True indicates that the password field was autofilled, false otherwise.
   bool was_password_autofilled_;
 
   // Records the username typed before suggestions preview.
   base::string16 username_query_prefix_;
 
   // Contains server predictions for username, password and/or new password
   // fields for individual forms.
   FormsPredictionsMap form_predictions_;
 
+  AutofillAgent* autofill_agent_;  // Weak reference.

[dcheng, 2016/07/12 14:22:12]

What's the lifetime relationship? Does AutofillAgent own this class? Or does
some other class own both and make sure they are created / destroyed together?

[leonhsl(Using Gerrit), 2016/07/13 03:48:31]

Both of them are observers of the same render frame, they don't own each other
but are created/destroyed together.

+
   DISALLOW_COPY_AND_ASSIGN(PasswordAutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_