Record the initial state of the Physical Web at startup

ios/chrome/browser/physical_web/physical_web_initial_state_recorder.h

Index: ios/chrome/browser/physical_web/physical_web_initial_state_recorder.h
diff --git a/ios/chrome/browser/physical_web/physical_web_initial_state_recorder.h b/ios/chrome/browser/physical_web/physical_web_initial_state_recorder.h
new file mode 100644
index 0000000000000000000000000000000000000000..e22a84ad9266aa9ce3040c12a158fa9e7bd01562
--- /dev/null
+++ b/ios/chrome/browser/physical_web/physical_web_initial_state_recorder.h
@@ -0,0 +1,21 @@
+// Copyright 2016 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.
+
+#ifndef IOS_CHROME_BROWSER_PHYSICAL_WEB_PHYSICAL_WEB_INITIAL_STATE_RECORDER_H_
+#define IOS_CHROME_BROWSER_PHYSICAL_WEB_PHYSICAL_WEB_INITIAL_STATE_RECORDER_H_
+
+#import <CoreBluetooth/CoreBluetooth.h>
+
+@interface PhysicalWebInitialStateRecorder : NSObject<CBCentralManagerDelegate>
+
+- (instancetype)initWithPreferenceState:(int)preferenceState
+                locationServicesEnabled:(BOOL)locationServicesEnabled
+                     locationAuthorized:(BOOL)locationAuthorized
+    NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)init NS_UNAVAILABLE;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_PHYSICAL_WEB_PHYSICAL_WEB_INITIAL_STATE_RECORDER_H_