Enable import/export of passwords into/from Password Manager

chrome/browser/ui/webui/options/password_manager_handler.h

Index: chrome/browser/ui/webui/options/password_manager_handler.h
diff --git a/chrome/browser/ui/webui/options/password_manager_handler.h b/chrome/browser/ui/webui/options/password_manager_handler.h
index 5fa0847d013b45cc22d82a245bd8d39247085a7a..a0bb444f2619f5a9a5539c018ea09ca8a3497ef5 100644
--- a/chrome/browser/ui/webui/options/password_manager_handler.h
+++ b/chrome/browser/ui/webui/options/password_manager_handler.h
@@ -12,14 +12,20 @@
 #include "chrome/browser/ui/passwords/password_manager_presenter.h"
 #include "chrome/browser/ui/passwords/password_ui_view.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
+#include "components/password_manager/core/browser/import/password_importer.h"
+#include "ui/shell_dialogs/select_file_dialog.h"
+
+class PasswordManagerHandlerTest;
 
 namespace options {
 
 // The WebUI based PasswordUIView. Displays passwords in the web ui.
 class PasswordManagerHandler : public OptionsPageUIHandler,
-                               public PasswordUIView {
+                               public PasswordUIView,
+                               public ui::SelectFileDialog::Listener {
  public:
   PasswordManagerHandler();
+  explicit PasswordManagerHandler(PasswordManagerPresenter* presenter);
   ~PasswordManagerHandler() override;
 
   // OptionsPageUIHandler implementation.
@@ -28,6 +34,11 @@ class PasswordManagerHandler : public OptionsPageUIHandler,
   void InitializePage() override;
   void RegisterMessages() override;
 
+  // ui::SelectFileDialog::Listener implementation
+  void FileSelected(const base::FilePath& path,
+                    int index,
+                    void* params) override;
+
   // PasswordUIView implementation.
   Profile* GetProfile() override;
   void ShowPassword(
@@ -44,6 +55,8 @@ class PasswordManagerHandler : public OptionsPageUIHandler,
   gfx::NativeWindow GetNativeWindow() const override;
 #endif
  private:
+  friend class ::PasswordManagerHandlerTest;
+
   // Clears and then populates the list of passwords and password exceptions.
   // Called when the JS PasswordManager object is initialized.
   void HandleUpdatePasswordLists(const base::ListValue* args);
@@ -60,11 +73,34 @@ class PasswordManagerHandler : public OptionsPageUIHandler,
   // |index| The index of the entry.
   void HandleRequestShowPassword(const base::ListValue* args);
 
+  // Import from CSV/JSON file. The steps are:
+  //   1. user click import button -> HandlePasswordImport() ->
+  //   start file selector
+  //   2. user selects file -> ImportPasswordFileSeleted() -> read to memory
+  //   3. read completes -> ImportPasswordFileRead() -> store to PasswordStore
+  void HandlePasswordImport(const base::ListValue* args);
+  void ImportPasswordFileSelected(const base::FilePath& path);
+  void ImportPasswordFileRead(password_manager::PasswordImporter::Result result,
+                              const std::vector<autofill::PasswordForm>& forms);
+
+  // Export to CSV/JSON file. The steps are:
+  //   1. user click export button -> HandlePasswordExport() ->
+  //   check OS password if necessary -> start file selector
+  //   2. user selects file -> ExportPasswordFileSeleted() ->
+  //   write to memory buffer -> start write operation
+  //   3. Writing completes -> ExportPaswordFileWritten()
+  void HandlePasswordExport(const base::ListValue* args);
+  void ExportPasswordFileSelected(const base::FilePath& path);
+  void ExportPasswordFileWritten();
+
   // User pref for storing accept languages.
   std::string languages_;
 
   // The PasswordManagerPresenter object owned by the this view.
-  PasswordManagerPresenter password_manager_presenter_;
+  scoped_ptr<PasswordManagerPresenter> password_manager_presenter_;
+
+  // Handle for file picker
+  scoped_refptr<ui::SelectFileDialog> selected_file_dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordManagerHandler);
 };