Add Physical Web experiment and command line flags

ios/chrome/browser/chrome_switches.cc

 // 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.
 
 #include "ios/chrome/browser/chrome_switches.h"
 
 namespace switches {
 
 // -----------------------------------------------------------------------------
 // When commenting your switch, please use the same voice as surrounding
@@ skipping 31 matching lines @@
 
 // Disable auto-reload of error pages if offline.
 const char kDisableOfflineAutoReload[] = "disable-offline-auto-reload";
 
 // Disables the tab eviction policy. (applicable iff WKWebView is enabled)
 const char kDisableTabEviction[] = "disable-tab-eviction";
 
 // Disables the tab switcher.
 const char kDisableTabSwitcher[] = "disable-tab-switcher";
 
+// Disables Physical Web scanning for nearby URLs.
+const char kDisableIOSPhysicalWeb[] = "disable-ios-physical-web";
+
 // Enables all bookmarks view in bookmark manager.
 const char kEnableAllBookmarksView[] = "enable-all-bookmarks-view";
 
 // Enables Contextual Search.
 const char kEnableContextualSearch[] = "enable-contextual-search";
 
 // Enable the experimental Credential Manager JavaScript API.
 const char kEnableCredentialManagerAPI[] = "enable-credential-manager-api";
 
 // Enables a workaround for fast inset updates for UIWebView.scrollView.
@@ skipping 23 matching lines @@
 
 // Enables context-sensitive reader mode button in the toolbar.
 const char kEnableReaderModeToolbarIcon[] = "enable-reader-mode-toolbar-icon";
 
 // Enables the tab eviction policy. (applicable iff WKWebView is enabled)
 const char kEnableTabEviction[] = "enable-tab-eviction";
 
 // Enables the tab switcher.
 const char kEnableTabSwitcher[] = "enable-tab-switcher";
 
+// Enables Physical Web scanning for nearby URLs.
+const char kEnableIOSPhysicalWeb[] = "enable-ios-physical-web";
+
 // Forces additional Chrome Variation Ids that will be sent in X-Client-Data
 // header, specified as a 64-bit encoded list of numeric experiment ids. Ids
 // prefixed with the character "t" will be treated as Trigger Variation Ids.
 const char kIOSForceVariationIds[] = "force-variation-ids";
 
 // Enables the recording of metrics reports but disables reporting. In contrast
 // to kDisableMetrics, this executes all the code that a normal client would
 // use for reporting, except the report is dropped rather than sent to the
 // server. This is useful for finding issues in the metrics code during UI and
 // performance tests.
@@ skipping 14 matching lines @@
 
 // Enables grouping websites by domain and filtering them by period.
 const char kHistoryEnableGroupByDomain[] = "enable-grouped-history";
 
 // Use to opt-in to marking HTTP as non-secure.
 const char kMarkNonSecureAs[] = "mark-non-secure-as";
 const char kMarkNonSecureAsNeutral[] = "neutral";
 const char kMarkNonSecureAsNonSecure[] = "non-secure";
 
 }  // namespace switches