Add basic support for launching mash shelf pinned apps.

chrome/browser/ui/ash/launcher/launcher_controller_helper.h

 // Copyright (c) 2012 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_ASH_LAUNCHER_LAUNCHER_CONTROLLER_HELPER_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_CONTROLLER_HELPER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
+#include "chrome/browser/ui/ash/launcher/chrome_launcher_types.h"
+#include "chrome/browser/ui/extensions/extension_enable_flow_delegate.h"
 
+class ExtensionEnableFlow;
 class Profile;
 
 namespace content {
 class WebContents;
 }
 
 // Assists the LauncherController with ExtensionService interaction.
-class LauncherControllerHelper {
+class LauncherControllerHelper : public ExtensionEnableFlowDelegate {
  public:
   explicit LauncherControllerHelper(Profile* profile);
-  virtual ~LauncherControllerHelper();
+  ~LauncherControllerHelper() override;
 
   // Helper function to return the title associated with |app_id|.
   // Returns an empty title if no matching extension can be found.
   static base::string16 GetAppTitle(Profile* profile,
                                     const std::string& app_id);
 
   // Returns the app id of the specified tab, or an empty string if there is
   // no app. All known profiles will be queried for this.
   virtual std::string GetAppID(content::WebContents* tab);
 
   // Returns true if |id| is valid for the currently active profile.
   // Used during restore to ignore no longer valid extensions.
   // Note that already running applications are ignored by the restore process.
   virtual bool IsValidIDForCurrentUser(const std::string& id);
 
   // Sets the currently active profile for the usage of |GetAppID|.
   virtual void SetCurrentUser(Profile* profile);
 
+  void LaunchApp(const std::string& app_id,
+                 ash::LaunchSource source,
+                 int event_flags);
+
  private:
+  // ExtensionEnableFlowDelegate:
+  void ExtensionEnableFlowFinished() override;
+  void ExtensionEnableFlowAborted(bool user_initiated) override;
+
   Profile* profile_;
+  std::unique_ptr<ExtensionEnableFlow> extension_enable_flow_;
 
   DISALLOW_COPY_AND_ASSIGN(LauncherControllerHelper);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_CONTROLLER_HELPER_H_