weave/settings: rename device_id to cloud_id

Bug: 24485657
Change-Id: I72ad9c545ad8ed40e9b5a195c44674790b73f9fd
Reviewed-on: https://weave-review.googlesource.com/1179
Reviewed-by: Vitaly Buka <vitalybuka@google.com>
diff --git a/libweave/src/privet/cloud_delegate.cc b/libweave/src/privet/cloud_delegate.cc
index 7d4a5f0..b1e7c16 100644
--- a/libweave/src/privet/cloud_delegate.cc
+++ b/libweave/src/privet/cloud_delegate.cc
@@ -148,7 +148,7 @@
   }
 
   std::string GetCloudId() const override {
-    return device_->GetSettings().device_id;
+    return device_->GetSettings().cloud_id;
   }
 
   const base::DictionaryValue& GetState() const override { return state_; }
@@ -276,8 +276,8 @@
     NotifyOnCommandDefsChanged();
   }
 
-  void OnRegisterSuccess(const std::string& device_id) {
-    VLOG(1) << "Device registered: " << device_id;
+  void OnRegisterSuccess(const std::string& cloud_id) {
+    VLOG(1) << "Device registered: " << cloud_id;
     setup_state_ = SetupState(SetupState::kSuccess);
   }