Make CopyEntry D-Bus timeout infinite

This change makes the D-Bus timeout for the CopyEntry method
infinite since currently each CopyEntry call can take an
undefined amount of time on the SmbProvider daemon side.

BUG=chromium:757625
TEST=none

Change-Id: I6da15c49a80062fa05f8c622e3ea3c402f69d8f2
Reviewed-on: https://chromium-review.googlesource.com/1054200Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Commit-Queue: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#557612}

chromeos/dbus/smb_provider_client.cc

@@ -236,7 +236,7 @@ class SmbProviderClientImpl : public SmbProviderClient {
     options.set_mount_id(mount_id);
     options.set_source_path(source_path.value());
     options.set_target_path(target_path.value());
-    CallDefaultMethod(smbprovider::kCopyEntryMethod, options, &callback);
+    CallCopyEntryMethod(options, std::move(callback));
   }
 
   void GetDeleteList(int32_t mount_id,
@@ -328,6 +328,21 @@ class SmbProviderClientImpl : public SmbProviderClient {
                        std::move(*callback)));
   }
 
+  // Calls the CopyEntry D-Bus method with no timeout, passing the |protobuf| as
+  // an argument. Uses the default callback handler to process |callback|.
+  void CallCopyEntryMethod(const google::protobuf::MessageLite& protobuf,
+                           StatusCallback callback) {
+    dbus::MethodCall method_call(smbprovider::kSmbProviderInterface,
+                                 smbprovider::kCopyEntryMethod);
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendProtoAsArrayOfBytes(protobuf);
+    proxy_->CallMethod(
+        &method_call, dbus::ObjectProxy::TIMEOUT_INFINITE,
+        base::BindOnce(&SmbProviderClientImpl::HandleDefaultCallback,
+                       GetWeakPtr(), method_call.GetMember(),
+                       std::move(callback)));
+  }
+
   // Handles D-Bus callback for mount.
   void HandleMountCallback(MountCallback callback, dbus::Response* response) {
     if (!response) {