Remove enable_webvr from build/config, and move it to the buildflag_header system.

chrome/common/url_constants.cc

 // 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.
 
 #include "chrome/common/url_constants.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "build/build_config.h"
@@ skipping 272 matching lines @@
 
 #if defined(OS_ANDROID)
 const char kChromeUIContextualSearchPromoHost[] = "contextual-search-promo";
 const char kChromeUIOfflineInternalsHost[] = "offline-internals";
 const char kChromeUIPhysicalWebDiagnosticsHost[] = "physical-web-diagnostics";
 const char kChromeUIPopularSitesInternalsHost[] = "popular-sites-internals";
 const char kChromeUISnippetsInternalsHost[] = "snippets-internals";
 const char kChromeUIWebApksHost[] = "webapks";
 #endif
 
-#if defined(ENABLE_WEBVR)
+#if BUILDFLAG(ENABLE_WEBVR)
 const char kChromeUIVrShellUIHost[] = "vr-shell-ui";
 #endif
 
 #if defined(OS_CHROMEOS)
 const char kChromeUIActivationMessageHost[] = "activationmessage";
 const char kChromeUIAppLaunchHost[] = "app-launch";
 const char kChromeUIBluetoothPairingHost[] = "bluetooth-pairing";
 const char kChromeUICertificateManagerHost[] = "certificate-manager";
 const char kChromeUIChooseMobileNetworkHost[] = "choose-mobile-network";
 const char kChromeUICryptohomeHost[] = "cryptohome";
@@ skipping 520 matching lines @@
 #endif
 
 const char kChooserUsbOverviewURL[] =
     "https://support.google.com/chrome?p=webusb";
 
 #if defined(OS_CHROMEOS)
 const char kEolNotificationURL[] = "https://www.google.com/chromebook/older/";
 #endif
 
 }  // namespace chrome