[Extensions] Convert some ChromeSyncExtensionFunctions

chrome/browser/extensions/api/desktop_capture/desktop_capture_base.h

 // Copyright 2015 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_EXTENSIONS_API_DESKTOP_CAPTURE_DESKTOP_CAPTURE_BASE_H_
 #define CHROME_BROWSER_EXTENSIONS_API_DESKTOP_CAPTURE_DESKTOP_CAPTURE_BASE_H_
 
 #include <array>
 #include <map>
 
@@ skipping 59 matching lines @@
 
   void OnPickerDialogResults(content::DesktopMediaID source);
 
   // URL of page that desktop capture was requested for.
   GURL origin_;
 
   std::unique_ptr<DesktopMediaPicker> picker_;
 };
 
 class DesktopCaptureCancelChooseDesktopMediaFunctionBase
-    : public ChromeSyncExtensionFunction {
+    : public UIThreadExtensionFunction {
  public:
   DesktopCaptureCancelChooseDesktopMediaFunctionBase();
 
  protected:
   ~DesktopCaptureCancelChooseDesktopMediaFunctionBase() override;
 
  private:
   // ExtensionFunction overrides.
-  bool RunSync() override;
+  ResponseAction Run() override;
 };
 
 class DesktopCaptureRequestsRegistry {
  public:
   DesktopCaptureRequestsRegistry();
   ~DesktopCaptureRequestsRegistry();
 
   static DesktopCaptureRequestsRegistry* GetInstance();
 
   void AddRequest(int process_id,
@@ skipping 19 matching lines @@
       std::map<RequestId, DesktopCaptureChooseDesktopMediaFunctionBase*>;
 
   RequestsMap requests_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopCaptureRequestsRegistry);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DESKTOP_CAPTURE_DESKTOP_CAPTURE_BASE_H_