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 75%
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..aec5ed7f0ab6e636ccd9ef025d5752e674079054 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_

[mattreynolds, 2016/11/04 00:28:53]

The data source implementation shouldn't be in ios/chrome/common since it's not
used by the Today extension. If this approach seems reasonable I'll split the
move into a separate CL.

 
 #include "base/macros.h"
 #import "base/mac/scoped_nsobject.h"
@@ -13,8 +13,10 @@ namespace base {
 class ListValue;
 }
 class PhysicalWebListener;
+class PrefService;
 
 @class PhysicalWebScanner;
+@class PhysicalWebInitialStateRecorder;
 
 // iOS implementation of PhysicalWebDataSource
 class IOSChromePhysicalWebDataSource : public PhysicalWebDataSourceImpl {
@@ -37,10 +39,16 @@ class IOSChromePhysicalWebDataSource : public PhysicalWebDataSourceImpl {
   // or more discovered URLs that have not been sent to the resolution service.
   bool HasUnresolvedDiscoveries() override;
 
+  // Records the initial state of settings relevant to the Physical Web feature.
+  void RecordInitialState(PrefService* prefService);
+
  private:
   // 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);
 };