Record the initial state of the Physical Web at startup

ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.h

Index: ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.h
diff --git a/ios/chrome/common/physical_web/ios_chrome_physical_web_data_source.h b/ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.h
similarity index 78%
rename from ios/chrome/common/physical_web/ios_chrome_physical_web_data_source.h
rename to ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.h
index a21a2a6b7cf9a4ab8060fc6c8c200f0668ef2046..8b23f5c72457e18cebfd846b8d74cfc77dcc9fb9 100644
--- a/ios/chrome/common/physical_web/ios_chrome_physical_web_data_source.h
+++ b/ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef IOS_CHROME_COMMON_PHYSICAL_WEB_IOS_CHROME_PHYSICAL_WEB_DATA_SOURCE_H_
-#define IOS_CHROME_COMMON_PHYSICAL_WEB_IOS_CHROME_PHYSICAL_WEB_DATA_SOURCE_H_
+#ifndef IOS_CHROME_BROWSER_PHYSICAL_WEB_IOS_CHROME_PHYSICAL_WEB_DATA_SOURCE_H_
+#define IOS_CHROME_BROWSER_PHYSICAL_WEB_IOS_CHROME_PHYSICAL_WEB_DATA_SOURCE_H_
 
 #include "base/macros.h"
 #import "base/mac/scoped_nsobject.h"
@@ -13,13 +13,15 @@ namespace base {
 class ListValue;
 }
 class PhysicalWebListener;
+class PrefService;
 
 @class PhysicalWebScanner;
+@class PhysicalWebInitialStateRecorder;
 
 // iOS implementation of PhysicalWebDataSource
 class IOSChromePhysicalWebDataSource : public PhysicalWebDataSourceImpl {
  public:
-  IOSChromePhysicalWebDataSource();
+  IOSChromePhysicalWebDataSource(PrefService* pref_service);
   ~IOSChromePhysicalWebDataSource() override;
 
   // Starts scanning for Physical Web URLs. If |network_request_enabled| is
@@ -41,6 +43,9 @@ class IOSChromePhysicalWebDataSource : public PhysicalWebDataSourceImpl {
   // Scanner for nearby Physical Web URL devices.
   base::scoped_nsobject<PhysicalWebScanner> scanner_;
 
+  // Utility for fetching initial application state for logging purposes.
+  base::scoped_nsobject<PhysicalWebInitialStateRecorder> initialStateRecorder_;
+
   DISALLOW_COPY_AND_ASSIGN(IOSChromePhysicalWebDataSource);
 };