WebView autofill implementation

components/autofill/content/browser/content_autofill_driver.h

 // Copyright 2014 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_BROWSER_CONTENT_AUTOFILL_DRIVER_H_
 #define COMPONENTS_AUTOFILL_CONTENT_BROWSER_CONTENT_AUTOFILL_DRIVER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/supports_user_data.h"
 #include "components/autofill/content/browser/key_press_handler_manager.h"
 #include "components/autofill/content/common/autofill_agent.mojom.h"
 #include "components/autofill/content/common/autofill_driver.mojom.h"
 #include "components/autofill/core/browser/autofill_driver.h"
 #include "components/autofill/core/browser/autofill_external_delegate.h"
 #include "components/autofill/core/browser/autofill_manager.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace content {
 class NavigationHandle;
 class RenderFrameHost;
 }
 
 namespace autofill {
 
 class AutofillClient;
+class AutofillProvider;
 
 // Class that drives autofill flow in the browser process based on
 // communication from the renderer and from the external world. There is one
 // instance per RenderFrameHost.
 class ContentAutofillDriver : public AutofillDriver,
                               public mojom::AutofillDriver,
                               public KeyPressHandlerManager::Delegate {
  public:
   ContentAutofillDriver(
       content::RenderFrameHost* render_frame_host,
       AutofillClient* client,
       const std::string& app_locale,
-      AutofillManager::AutofillDownloadManagerState enable_download_manager);
+      AutofillManager::AutofillDownloadManagerState enable_download_manager,
+      AutofillProvider* provider);
   ~ContentAutofillDriver() override;
 
   // Gets the driver for |render_frame_host|.
   static ContentAutofillDriver* GetForRenderFrameHost(
       content::RenderFrameHost* render_frame_host);
 
   void BindRequest(mojom::AutofillDriverRequest request);
 
   // AutofillDriver:
   bool IsIncognito() const override;
@@ skipping 36 matching lines @@
                                base::TimeTicks timestamp) override;
   void DidPreviewAutofillFormData() override;
   void DidEndTextFieldEditing() override;
   void SetDataList(const std::vector<base::string16>& values,
                    const std::vector<base::string16>& labels) override;
 
   // Called when the frame has navigated.
   void DidNavigateFrame(content::NavigationHandle* navigation_handle);
 
   AutofillExternalDelegate* autofill_external_delegate() {
-    return &autofill_external_delegate_;
+    return autofill_external_delegate_.get();
   }
 
-  AutofillManager* autofill_manager() { return autofill_manager_.get(); }
+  AutofillManager* autofill_manager() { return autofill_manager_; }
   content::RenderFrameHost* render_frame_host() { return render_frame_host_; }
 
   const mojom::AutofillAgentPtr& GetAutofillAgent();
 
   // Methods forwarded to key_press_handler_manager_.
   void RegisterKeyPressHandler(
       const content::RenderWidgetHost::KeyPressEventCallback& handler);
   void RemoveKeyPressHandler();
 
  protected:
   // Sets the manager to |manager| and sets |manager|'s external delegate
   // to |autofill_external_delegate_|. Takes ownership of |manager|.
   void SetAutofillManager(std::unique_ptr<AutofillManager> manager);
 
  private:
   // KeyPressHandlerManager::Delegate:
   void AddHandler(
       const content::RenderWidgetHost::KeyPressEventCallback& handler) override;
   void RemoveHandler(
       const content::RenderWidgetHost::KeyPressEventCallback& handler) override;
 
   // Weak ref to the RenderFrameHost the driver is associated with. Should
   // always be non-NULL and valid for lifetime of |this|.
   content::RenderFrameHost* const render_frame_host_;
 
-  // AutofillManager instance via which this object drives the shared Autofill
+  // AutofillHandler instance via which this object drives the shared Autofill
   // code.
-  std::unique_ptr<AutofillManager> autofill_manager_;
+  std::unique_ptr<AutofillHandler> autofill_handler_;
+
+  // The pointer to autofill_handler_ if it is AutofillManager instance.
+  // TODO: unify autofill_handler_ and autofill_manager_ to a single pointer to
+  // a common root.
+  AutofillManager* autofill_manager_;
 
   // AutofillExternalDelegate instance that this object instantiates in the
   // case where the Autofill native UI is enabled.
-  AutofillExternalDelegate autofill_external_delegate_;
+  std::unique_ptr<AutofillExternalDelegate> autofill_external_delegate_;
 
   KeyPressHandlerManager key_press_handler_manager_;
 
   mojo::Binding<mojom::AutofillDriver> binding_;
 
   mojom::AutofillAgentPtr autofill_agent_;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_BROWSER_CONTENT_AUTOFILL_DRIVER_H_