Add a Physical Web data source

ios/chrome/browser/ios_chrome_main_parts.mm

Index: ios/chrome/browser/ios_chrome_main_parts.mm
diff --git a/ios/chrome/browser/ios_chrome_main_parts.mm b/ios/chrome/browser/ios_chrome_main_parts.mm
index 649a93bcd1d697bd14deca17c6eddb5424a96308..84ab4b67e1fa02d68b930fbe507b4ed77ae6ac98 100644
--- a/ios/chrome/browser/ios_chrome_main_parts.mm
+++ b/ios/chrome/browser/ios_chrome_main_parts.mm
@@ -21,6 +21,7 @@
 #include "components/metrics/profiler/tracking_synchronizer.h"
 #include "components/metrics_services_manager/metrics_services_manager.h"
 #include "components/open_from_clipboard/clipboard_recent_content.h"
+#include "components/physical_web/data_source/physical_web_data_source.h"
 #include "components/prefs/json_pref_store.h"
 #include "components/prefs/pref_service.h"
 #include "components/rappor/rappor_service.h"
@@ -34,11 +35,13 @@
 #include "ios/chrome/browser/chrome_paths.h"
 #include "ios/chrome/browser/chrome_switches.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
+#import "ios/chrome/browser/experimental_flags.h"
 #import "ios/chrome/browser/first_run/first_run.h"
 #include "ios/chrome/browser/install_time_util.h"
 #include "ios/chrome/browser/ios_chrome_field_trials.h"
 #include "ios/chrome/browser/metrics/field_trial_synchronizer.h"
 #include "ios/chrome/browser/open_from_clipboard/create_clipboard_recent_content.h"
+#include "ios/chrome/browser/physical_web/create_physical_web_data_source.h"
 #include "ios/chrome/browser/pref_names.h"
 #include "ios/chrome/browser/translate/translate_service_ios.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
@@ -136,6 +139,13 @@ void IOSChromeMainParts::PreMainMessageLoopRun() {
   ClipboardRecentContent::SetInstance(
       CreateClipboardRecentContentIOS().release());
 
+  // Ensure IOSChromePhysicalWebDataSource is created when the experiment is
+  // enabled.
+  if (experimental_flags::IsPhysicalWebEnabled()) {
+    PhysicalWebDataSource::SetInstance(
+        CreateIOSChromePhysicalWebDataSource().release());
+  }
+
   // Ensure that the browser state is initialized.
   ios::GetChromeBrowserProvider()->AssertBrowserContextKeyedFactoriesBuilt();
   ios::ChromeBrowserStateManager* browser_state_manager =