[CrOS Tether] Fill out the Initializer class. Tether will now initialize fully once the flag is ena…

chromeos/components/tether/tether_host_fetcher.h

Index: chromeos/components/tether/tether_host_fetcher.h
diff --git a/chromeos/components/tether/tether_host_fetcher.h b/chromeos/components/tether/tether_host_fetcher.h
index d190758c9821b9096a4fab593a941e6e6f5c3ff0..e1a1fb3d5a3f61189a80f9b789af7695bc426ea3 100644
--- a/chromeos/components/tether/tether_host_fetcher.h
+++ b/chromeos/components/tether/tether_host_fetcher.h
@@ -28,10 +28,7 @@ namespace tether {
 // synced via CryptAuth.
 class TetherHostFetcher {
  public:
-  TetherHostFetcher(const std::string& user_id,
-                    const std::string& user_private_key,
-                    cryptauth::CryptAuthService* cryptauth_service,
-                    cryptauth::CryptAuthDeviceManager* device_manager);
+  explicit TetherHostFetcher(cryptauth::CryptAuthService* cryptauth_service);
   virtual ~TetherHostFetcher();
 
   // Fetches all tether hosts.
@@ -47,7 +44,8 @@ class TetherHostFetcher {
 
  protected:
   struct TetherHostFetchRequest {
-    TetherHostFetchRequest(const TetherHostListCallback& list_callback);
+    explicit TetherHostFetchRequest(
+        const TetherHostListCallback& list_callback);
     TetherHostFetchRequest(const std::string& device_id,
                            const TetherHostCallback& single_callback);
     TetherHostFetchRequest(const TetherHostFetchRequest& other);
@@ -63,6 +61,11 @@ class TetherHostFetcher {
     TetherHostCallback single_callback;
   };
 
+  TetherHostFetcher(const std::string& user_id,
+                    const std::string& user_private_key,
+                    cryptauth::CryptAuthService* cryptauth_service,
+                    cryptauth::CryptAuthDeviceManager* device_manager);
+
   void OnRemoteDevicesLoaded(const cryptauth::RemoteDeviceList& remote_devices);
 
   std::vector<TetherHostFetchRequest> requests_;