[Extensions] Convert some SyncExtensionFunctions

extensions/browser/api/management/management_api_delegate.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 EXTENSIONS_BROWSER_API_MANAGEMENT_MANAGEMENT_API_DELEGATER_H_
 #define EXTENSIONS_BROWSER_API_MANAGEMENT_MANAGEMENT_API_DELEGATER_H_
 
 #include "base/callback.h"
 #include "extensions/browser/uninstall_reason.h"
 #include "extensions/common/constants.h"
@@ skipping 32 matching lines @@
 // Manages the lifetime of the bookmark app creation.
 class AppForLinkDelegate {
  public:
   virtual ~AppForLinkDelegate() {}
 };
 
 class ManagementAPIDelegate {
  public:
   virtual ~ManagementAPIDelegate() {}
 
-  // Launches the app |extension|. Returns true on success.
-  virtual bool LaunchAppFunctionDelegate(
+  // Launches the app |extension|.
+  virtual void LaunchAppFunctionDelegate(
       const Extension* extension,
       content::BrowserContext* context) const = 0;
 
   // Forwards the call to extensions::util::IsNewBookmarkAppsEnabled in
   // chrome.
   virtual bool IsNewBookmarkAppsEnabled() const = 0;
 
   // Forwards the call to extensions::util::CanHostedAppsOpenInWindows in
   // chrome.
   virtual bool CanHostedAppsOpenInWindows() const = 0;
@@ skipping 68 matching lines @@
   virtual GURL GetIconURL(const Extension* extension,
                           int icon_size,
                           ExtensionIconSet::MatchType match,
                           bool grayscale,
                           bool* exists) const = 0;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_MANAGEMENT_MANAGEMENT_API_DELEGATER_H_