Record the initial state of the Physical Web at startup

ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.mm

Index: ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.mm
diff --git a/ios/chrome/common/physical_web/ios_chrome_physical_web_data_source.mm b/ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.mm
similarity index 79%
rename from ios/chrome/common/physical_web/ios_chrome_physical_web_data_source.mm
rename to ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.mm
index 12edafa0a6d3178384cd40a280c991762cbeffec..b662920846c0b8b5c3cc7b592ddbe3866c71fd16 100644
--- a/ios/chrome/common/physical_web/ios_chrome_physical_web_data_source.mm
+++ b/ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.mm
@@ -2,10 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#import "ios/chrome/common/physical_web/ios_chrome_physical_web_data_source.h"
+#import "ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/values.h"
+#import "ios/chrome/browser/physical_web/physical_web_initial_state_recorder.h"
 #import "ios/chrome/common/physical_web/physical_web_scanner.h"
 
 IOSChromePhysicalWebDataSource::IOSChromePhysicalWebDataSource() {}
@@ -48,3 +49,10 @@ std::unique_ptr<base::ListValue> IOSChromePhysicalWebDataSource::GetMetadata() {
 bool IOSChromePhysicalWebDataSource::HasUnresolvedDiscoveries() {
   return [scanner_ unresolvedBeaconsCount] > 0;
 }
+
+void IOSChromePhysicalWebDataSource::RecordInitialState(
+    PrefService* pref_service) {
+  initialStateRecorder_.reset([[PhysicalWebInitialStateRecorder alloc]
+      initWithPrefService:pref_service]);
+  [initialStateRecorder_ collectAndRecordState];
+}