Move enable_webrtc to a buildflag header.

chrome/browser/browser_process.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.
 
 // This interface is for managing the global services of the application. Each
 // service is lazily created when requested the first time. The service getters
 // will return NULL if the service is not available, so callers must check for
 // this condition.
 
 #ifndef CHROME_BROWSER_BROWSER_PROCESS_H_
 #define CHROME_BROWSER_BROWSER_PROCESS_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process_platform_part.h"
 #include "chrome/browser/shell_integration.h"
+#include "media/media_features.h"
 
 class BackgroundModeManager;
 class CRLSetFetcher;
 class DownloadRequestLimiter;
 class DownloadStatusUpdater;
 class GpuModeManager;
 class GpuProfileCache;
 class IconManager;
 class IntranetRedirectDetector;
 class IOThread;
 class MediaFileSystemRegistry;
 class NotificationPlatformBridge;
 class NotificationUIManager;
 class PhysicalWebDataSource;
 class PrefRegistrySimple;
 class PrefService;
 class Profile;
 class ProfileManager;
 class StatusTray;
 class WatchDogThread;
-#if defined(ENABLE_WEBRTC)
+#if BUILDFLAG(ENABLE_WEBRTC)
 class WebRtcLogUploader;
 #endif
 
 namespace safe_browsing {
 class SafeBrowsingService;
 }
 
 namespace subresource_filter {
 class RulesetService;
 }
@@ skipping 202 matching lines @@
   virtual component_updater::PnaclComponentInstaller*
   pnacl_component_installer() = 0;
 
   virtual component_updater::SupervisedUserWhitelistInstaller*
   supervised_user_whitelist_installer() = 0;
 
   virtual MediaFileSystemRegistry* media_file_system_registry() = 0;
 
   virtual bool created_local_state() const = 0;
 
-#if defined(ENABLE_WEBRTC)
+#if BUILDFLAG(ENABLE_WEBRTC)
   virtual WebRtcLogUploader* webrtc_log_uploader() = 0;
 #endif
 
   virtual network_time::NetworkTimeTracker* network_time_tracker() = 0;
 
   virtual gcm::GCMDriver* gcm_driver() = 0;
 
   // Returns the tab manager. On non-supported platforms, this returns null.
   virtual memory::TabManager* GetTabManager() = 0;
 
   // Returns the default web client state of Chrome (i.e., was it the user's
   // default browser) at the time a previous check was made sometime between
   // process startup and now.
   virtual shell_integration::DefaultWebClientState
   CachedDefaultWebClientState() = 0;
 
   // Returns the Physical Web data source.
   virtual PhysicalWebDataSource* GetPhysicalWebDataSource() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BrowserProcess);
 };
 
 extern BrowserProcess* g_browser_process;
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_H_