[SyncInvalidations] Don't refresh device info if provider is not ready.

When Sync starts, interested data types and the FCM token are written to
device info, and RefreshLocalDeviceInfo() is triggered. That can happen
before the device info provider gets initialized, which then causes the
check in SendLocalDataWithBatch() to fail.

Since local device info is sent when everything is initialized, we can
just ignore the request to refresh if the initialization is not
finished.

Bug: 1082115
Change-Id: I884e31853c3f9160ef960c01081b7c69aa9ce578
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2445169Reviewed-by: Marc Treib <treib@chromium.org>
Reviewed-by: Rushan Suleymanov <rushans@google.com>
Commit-Queue: Paula Vidas <paulavidas@google.com>
Cr-Commit-Position: refs/heads/master@{#813160}

components/sync_device_info/device_info_sync_bridge.cc

@@ -230,7 +230,11 @@ void DeviceInfoSyncBridge::RefreshLocalDeviceInfo(base::OnceClosure callback) {
     device_info_synced_callback_list_.push_back(std::move(callback));
   }
 
-  SendLocalData();
+  // Device info cannot be synced if the provider is not initialized. When it
+  // gets initialized, local device info will be sent.
+  if (local_device_info_provider_->GetLocalDeviceInfo()) {
+    SendLocalData();
+  }
 }
 
 void DeviceInfoSyncBridge::OnSyncStarting(