[Extensions UI] Initially disabled OK button for extension install prompts.

chrome/browser/ui/views/extensions/extension_install_dialog_view.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 CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_INSTALL_DIALOG_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_INSTALL_DIALOG_VIEW_H_
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/extension_install_prompt.h"
 #include "ui/gfx/animation/animation_delegate.h"
@@ skipping 32 matching lines @@
       Profile* profile,
       content::PageNavigator* navigator,
       const ExtensionInstallPrompt::DoneCallback& done_callback,
       std::unique_ptr<ExtensionInstallPrompt::Prompt> prompt);
   ~ExtensionInstallDialogView() override;
 
   // Returns the interior ScrollView of the dialog. This allows us to inspect
   // the contents of the DialogView.
   const views::ScrollView* scroll_view() const { return scroll_view_; }
 
+  static void SetInstallButtonDelayForTesting(int timeout_in_ms);
+
  private:
   // views::View:
   void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
+  void VisibilityChanged(views::View* starting_from, bool is_visible) override;
 
   // views::DialogDelegateView:
   int GetDialogButtons() const override;
   base::string16 GetDialogButtonLabel(ui::DialogButton button) const override;
   int GetDefaultDialogButton() const override;
   bool Cancel() override;
   bool Accept() override;
   ui::ModalType GetModalType() const override;
   void Layout() override;
   gfx::Size GetPreferredSize() const override;
   views::View* CreateExtraView() override;
+  bool IsDialogButtonEnabled(ui::DialogButton button) const override;
 
   // views::LinkListener:
   void LinkClicked(views::Link* source, int event_flags) override;
 
   // Initializes the dialog view, adding in permissions if they exist.
   void InitView();
 
+  // Enables the install button and updates the dialog buttons.
+  void EnableInstallButton();
+
   // Adds permissions of |perm_type| to the dialog view if they exist.
   bool AddPermissions(views::GridLayout* layout,
                       ui::ResourceBundle& rb,
                       int column_set_id,
                       int left_column_width,
                       ExtensionInstallPrompt::PermissionsType perm_type);
 
   // Creates a layout consisting of dialog header, extension name and icon.
   views::GridLayout* CreateLayout(int left_column_width, int column_set_id);
 
@@ skipping 21 matching lines @@
   // The preferred size of the dialog.
   gfx::Size dialog_size_;
 
   // ExperienceSampling: Track this UI event.
   std::unique_ptr<extensions::ExperienceSamplingEvent> sampling_event_;
 
   // Set to true once the user's selection has been received and the callback
   // has been run.
   bool handled_result_;
 
+  // Used to delay the activation of the install button.
+  base::OneShotTimer timer_;
+
+  // Used to determine whether the install button should be enabled.
+  bool install_button_enabled_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionInstallDialogView);
 };
 
 // A simple view that prepends a view with a bullet with the help of a grid
 // layout.
 class BulletedView : public views::View {
  public:
   explicit BulletedView(views::View* view);
  private:
   DISALLOW_COPY_AND_ASSIGN(BulletedView);
@@ skipping 64 matching lines @@
   // on whether the details section is expanded).
   views::ImageButton* arrow_toggle_;
 
   // Whether the details section is expanded.
   bool expanded_;
 
   DISALLOW_COPY_AND_ASSIGN(ExpandableContainerView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_INSTALL_DIALOG_VIEW_H_