Move MediaDeviceIDSalt from ProfileIOData to ProfileImpl.

chrome/browser/profiles/profile_io_data.h

Index: chrome/browser/profiles/profile_io_data.h
diff --git a/chrome/browser/profiles/profile_io_data.h b/chrome/browser/profiles/profile_io_data.h
index ef8fd8dad3a731a46ddf9e309bf934f86833dcb1..9f3ea25ffadbb9f88741fba42f9112445a9deeae 100644
--- a/chrome/browser/profiles/profile_io_data.h
+++ b/chrome/browser/profiles/profile_io_data.h
@@ -43,7 +43,6 @@ class ChromeNetworkDelegate;
 class ChromeURLRequestContextGetter;
 class ChromeExpectCTReporter;
 class HostContentSettingsMap;
-class MediaDeviceIDSalt;
 class NetHttpSessionParamsObserver;
 class ProtocolHandlerRegistry;
 
@@ -180,12 +179,6 @@ class ProfileIOData {
     return &network_prediction_options_;
   }
 
-  bool HasMediaDeviceIDSalt() const {
-    return media_device_id_salt_.get() != nullptr;
-  }
-
-  std::string GetMediaDeviceIDSalt() const;
-
   DevToolsNetworkControllerHandle* network_controller_handle() const {
     return &network_controller_handle_;
   }
@@ -433,7 +426,6 @@ class ProfileIOData {
     // ResourceContext implementation:
     net::HostResolver* GetHostResolver() override;
     net::URLRequestContext* GetRequestContext() override;
-    std::string GetMediaDeviceIDSalt() override;
 
    private:
     friend class ProfileIOData;
@@ -526,8 +518,6 @@ class ProfileIOData {
 
   mutable StringPrefMember google_services_user_account_id_;
 
-  mutable scoped_refptr<MediaDeviceIDSalt> media_device_id_salt_;
-
   // Member variables which are pointed to by the various context objects.
   mutable BooleanPrefMember enable_referrers_;
   mutable BooleanPrefMember enable_do_not_track_;