Refactoring startup logic for upcoming FRE changes (non-Win 10).

chrome/browser/ui/startup/startup_tab_provider.h

+// Copyright 2016 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_STARTUP_STARTUP_TAB_PROVIDER_H_
+#define CHROME_BROWSER_UI_STARTUP_STARTUP_TAB_PROVIDER_H_
+
+#include <vector>
+
+#include "base/gtest_prod_util.h"
+#include "chrome/browser/first_run/first_run.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/startup/startup_browser_creator.h"
+#include "chrome/browser/ui/startup/startup_tab.h"
+#include "url/gurl.h"
+
+// Provides the sets of tabs to be shown at startup for given sets of policy.
+// For instance, this class answers the question, "which tabs, if any, need to
+// be shown for first run/onboarding?"
+class StartupTabProvider {
+ public:
+  StartupTabProvider() = default;
+  virtual ~StartupTabProvider() = default;
+
+  // Determines which tabs which should be shown according to onboarding/first
+  // run policy, and adds them to |tabs|. Returns true iff any tabs were added.
+  virtual bool AddOnboardingTabs(StartupTabs* tabs) const = 0;
+
+  // Gathers tabs from a Master Preferences file indicating first run logic
+  // specific to this distribution, and adds them to |tabs|. Also clears the
+  // value of first_run_urls_ in the provided BrowserCreator. Returns true iff
+  // any tabs were added.
+  virtual bool AddDistributionFirstRunTabs(
+      StartupBrowserCreator* browser_creator,
+      StartupTabs* tabs) const = 0;
+
+  // Determines which tabs should be shown as a result of a Reset Trigger
+  // present on
+  // this profile. Returns true iff any tabs were added.
+  virtual bool AddResetTriggerTabs(Profile* profile,
+                                   StartupTabs* tabs) const = 0;
+
+  // Reads tabs from the user's pinned tabs and adds them to |tabs|. Returns
+  // true iff any tabs were added.
+  virtual bool AddPinnedTabs(StartupTabs* tabs) const = 0;
+
+  // Reads tabs from the user's preferences and adds them to |tabs|. Returns
+  // true iff any tabs were added.
+  virtual bool AddPreferencesTabs(StartupTabs* tabs) const = 0;
+};
+
+class StartupTabProviderImpl : public StartupTabProvider {
+ public:
+  StartupTabProviderImpl() = default;
+  bool AddOnboardingTabs(StartupTabs* tabs) const override;
+  bool AddDistributionFirstRunTabs(StartupBrowserCreator* browser_creator,
+                                   StartupTabs* tabs) const override;
+  bool AddResetTriggerTabs(Profile* profile, StartupTabs* tabs) const override;
+  bool AddPinnedTabs(StartupTabs* tabs) const override;
+  bool AddPreferencesTabs(StartupTabs* tabs) const override;
+
+  static StartupTabs CheckStandardOnboardingTabPolicy(bool is_first_run);
+  static StartupTabs CheckMasterPrefsTabPolicy(
+      bool is_first_run,
+      const std::vector<GURL>& first_run_tabs);
+  static StartupTabs CheckResetTriggerTabPolicy(bool profile_has_trigger);
+
+  DISALLOW_COPY_AND_ASSIGN(StartupTabProviderImpl);
+};
+
+// Gets the URL for the "Welcome to Chrome" dialog.
+// TODO(tmartino): Update to return new Welcome page when complete.
+GURL GetWelcomePageUrl();
+GURL GetTriggeredResetSettingsUrl();
+
+#endif  // CHROME_BROWSER_UI_STARTUP_STARTUP_TAB_PROVIDER_H_