Make enable_service_discovery a chrome/ feature.

chrome/browser/ui/webui/print_preview/print_preview_handler.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_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/common/features.h"
 #include "components/signin/core/browser/gaia_cookie_manager_service.h"
 #include "content/public/browser/web_ui_message_handler.h"
 #include "ui/shell_dialogs/select_file_dialog.h"
 
-#if defined(ENABLE_SERVICE_DISCOVERY)
+#if BUILDFLAG(ENABLE_SERVICE_DISCOVERY)
 #include "chrome/browser/local_discovery/service_discovery_shared_client.h"
 #include "chrome/browser/printing/cloud_print/privet_local_printer_lister.h"
-#endif  // defined(ENABLE_SERVICE_DISCOVERY)
+#endif
 
 class PrinterHandler;
 class PrintPreviewUI;
 class PrintSystemTaskProxy;
 
 namespace base {
 class DictionaryValue;
 class RefCountedBytes;
 }
 
 namespace content {
 class WebContents;
 }
 
 namespace gfx {
 class Size;
 }
 
 // The handler for Javascript messages related to the print preview dialog.
 class PrintPreviewHandler
     : public content::WebUIMessageHandler,
-#if defined(ENABLE_SERVICE_DISCOVERY)
+#if BUILDFLAG(ENABLE_SERVICE_DISCOVERY)
       public cloud_print::PrivetLocalPrinterLister::Delegate,
       public cloud_print::PrivetLocalPrintOperation::Delegate,
 #endif
       public ui::SelectFileDialog::Listener,
       public GaiaCookieManagerService::Observer {
  public:
   PrintPreviewHandler();
   ~PrintPreviewHandler() override;
 
   // WebUIMessageHandler implementation.
@@ skipping 12 matching lines @@
 
   // Called when print preview failed.
   void OnPrintPreviewFailed();
 
 #if defined(ENABLE_BASIC_PRINTING)
   // Called when the user press ctrl+shift+p to display the native system
   // dialog.
   void ShowSystemDialog();
 #endif  // defined(ENABLE_BASIC_PRINTING)
 
-#if defined(ENABLE_SERVICE_DISCOVERY)
+#if BUILDFLAG(ENABLE_SERVICE_DISCOVERY)
   // PrivetLocalPrinterLister::Delegate implementation.
   void LocalPrinterChanged(
       const std::string& name,
       bool has_local_printing,
       const cloud_print::DeviceDescription& description) override;
   void LocalPrinterRemoved(const std::string& name) override;
   void LocalPrinterCacheFlushed() override;
 
   // PrivetLocalPrintOperation::Delegate implementation.
   void OnPrivetPrintingDone(
       const cloud_print::PrivetLocalPrintOperation* print_operation) override;
   void OnPrivetPrintingError(
       const cloud_print::PrivetLocalPrintOperation* print_operation,
       int http_code) override;
-#endif  // defined(ENABLE_SERVICE_DISCOVERY)
+#endif
 
   int regenerate_preview_request_count() const {
     return regenerate_preview_request_count_;
   }
 
   // Sets |pdf_file_saved_closure_| to |closure|.
   void SetPdfSavedClosureForTesting(const base::Closure& closure);
 
  private:
   friend class PrintPreviewPdfGeneratedBrowserTest;
   FRIEND_TEST_ALL_PREFIXES(PrintPreviewPdfGeneratedBrowserTest,
                            MANUAL_DummyTest);
   class AccessTokenService;
 
-  static bool PrivetPrintingEnabled();
-
   content::WebContents* preview_web_contents() const;
 
   PrintPreviewUI* print_preview_ui() const;
 
   // Gets the list of printers. |args| is unused.
   void HandleGetPrinters(const base::ListValue* args);
 
   // Starts getting all local privet printers. |args| is unused.
   void HandleGetPrivetPrinters(const base::ListValue* args);
 
@@ skipping 134 matching lines @@
   // the user. Just an adaptor for FileSelected().
   void OnGotUniqueFileName(const base::FilePath& path);
 
 #if defined(USE_CUPS)
   void SaveCUPSColorSetting(const base::DictionaryValue* settings);
 
   void ConvertColorSettingToCUPSColorModel(
       base::DictionaryValue* settings) const;
 #endif
 
-#if defined(ENABLE_SERVICE_DISCOVERY)
+#if BUILDFLAG(ENABLE_SERVICE_DISCOVERY)
   void StartPrivetLister(const scoped_refptr<
       local_discovery::ServiceDiscoverySharedClient>& client);
   void OnPrivetCapabilities(const base::DictionaryValue* capabilities);
   void PrivetCapabilitiesUpdateClient(
       std::unique_ptr<cloud_print::PrivetHTTPClient> http_client);
   void PrivetLocalPrintUpdateClient(
       std::string print_ticket,
       std::string capabilities,
       gfx::Size page_size,
       std::unique_ptr<cloud_print::PrivetHTTPClient> http_client);
   bool PrivetUpdateClient(
       std::unique_ptr<cloud_print::PrivetHTTPClient> http_client);
   void StartPrivetLocalPrint(const std::string& print_ticket,
                              const std::string& capabilities,
                              const gfx::Size& page_size);
   void SendPrivetCapabilitiesError(const std::string& id);
   void PrintToPrivetPrinter(const std::string& printer_name,
                             const std::string& print_ticket,
                             const std::string& capabilities,
                             const gfx::Size& page_size);
   bool CreatePrivetHTTP(
       const std::string& name,
       const cloud_print::PrivetHTTPAsynchronousFactory::ResultCallback&
           callback);
   void FillPrinterDescription(
       const std::string& name,
       const cloud_print::DeviceDescription& description,
       bool has_local_printing,
       base::DictionaryValue* printer_value);
-#endif  // defined(ENABLE_SERVICE_DISCOVERY)
+#endif
 
   // Lazily creates |extension_printer_handler_| that can be used to handle
   // extension printers requests.
   void EnsureExtensionPrinterHandlerSet();
 
   // Called when a list of printers is reported by an extension.
   // |printers|: The list of printers managed by the extension.
   // |done|: Whether all the extensions have reported the list of printers
   //     they manage.
   void OnGotPrintersForExtension(const base::ListValue& printers, bool done);
@@ skipping 45 matching lines @@
   // exists.
   base::FilePath print_to_pdf_path_;
 
   // Holds token service to get OAuth2 access tokens.
   std::unique_ptr<AccessTokenService> token_service_;
 
   // Pointer to cookie manager service so that print preview can listen for GAIA
   // cookie changes.
   GaiaCookieManagerService* gaia_cookie_manager_service_;
 
-#if defined(ENABLE_SERVICE_DISCOVERY)
+#if BUILDFLAG(ENABLE_SERVICE_DISCOVERY)
   scoped_refptr<local_discovery::ServiceDiscoverySharedClient>
       service_discovery_client_;
   std::unique_ptr<cloud_print::PrivetLocalPrinterLister> printer_lister_;
 
   std::unique_ptr<cloud_print::PrivetHTTPAsynchronousFactory>
       privet_http_factory_;
   std::unique_ptr<cloud_print::PrivetHTTPResolution> privet_http_resolution_;
   std::unique_ptr<cloud_print::PrivetV1HTTPClient> privet_http_client_;
   std::unique_ptr<cloud_print::PrivetJSONOperation>
       privet_capabilities_operation_;
   std::unique_ptr<cloud_print::PrivetLocalPrintOperation>
       privet_local_print_operation_;
-#endif  // defined(ENABLE_SERVICE_DISCOVERY)
+#endif
 
   // Handles requests for extension printers. Created lazily by calling
   // |EnsureExtensionPrinterHandlerSet|.
   std::unique_ptr<PrinterHandler> extension_printer_handler_;
 
   // Notifies tests that want to know if the PDF has been saved. This doesn't
   // notify the test if it was a successful save, only that it was attempted.
   base::Closure pdf_file_saved_closure_;
 
   base::WeakPtrFactory<PrintPreviewHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_