Disable PushClientChannel

components/invalidation/push_client_channel_unittest.cc

@@ -0,0 +1,61 @@
+#include <stdint.h>
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "base/memory/ptr_util.h"
+#include "components/invalidation/impl/push_client_channel.h"
+#include "jingle/notifier/listener/fake_push_client.h"
+#include "jingle/notifier/listener/notification_defines.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace syncer {
+namespace {
+
+class PushClientChannelTest
+    : public ::testing::Test,
+      public SyncNetworkChannel::Observer {
+ protected:
+  PushClientChannelTest()
+      : fake_push_client_(new notifier::FakePushClient()),
+        push_client_channel_(base::WrapUnique(fake_push_client_)) {
+    push_client_channel_.AddObserver(this);
+    push_client_channel_.SetMessageReceiver(
+        invalidation::NewPermanentCallback(
+            this, &PushClientChannelTest::OnIncomingMessage));
+    push_client_channel_.SetSystemResources(nullptr);
+  }
+
+  ~PushClientChannelTest() override {
+    push_client_channel_.RemoveObserver(this);
+  }
+
+  void OnNetworkChannelStateChanged(
+      InvalidatorState invalidator_state) override {
+    NOTREACHED();
+  }
+
+  void OnIncomingMessage(std::string incoming_message) {
+    NOTREACHED();
+  }
+
+  notifier::FakePushClient* fake_push_client_;
+  PushClientChannel push_client_channel_;
+};
+
+const char kMessage[] = "message";
+const char kServiceContext[] = "service context";
+const int64_t kSchedulingHash = 100;
+
+// Simulate an incoming notification. Nothing should happen because
+// the channel should not be listening.
+TEST_F(PushClientChannelTest, OnIncomingMessage) {
+   notifier::Notification notification;
+  notification.data =
+      PushClientChannel::EncodeMessageForTest(
+          kMessage, kServiceContext, kSchedulingHash);
+  fake_push_client_->SimulateIncomingNotification(notification);
+}
+
+}  // namespace
+}  // namespace syncer

patches/components-invalidation-impl-push_client_channel.cc.patch

@@ -0,0 +1,20 @@
+diff --git a/components/invalidation/impl/push_client_channel.cc b/components/invalidation/impl/push_client_channel.cc
+index 709d8e562c22..9170819bb45e 100644
+--- a/components/invalidation/impl/push_client_channel.cc
++++ b/components/invalidation/impl/push_client_channel.cc
+@@ -28,6 +28,7 @@ PushClientChannel::PushClientChannel(
+     : push_client_(std::move(push_client)),
+       scheduling_hash_(0),
+       sent_messages_count_(0) {
++  return; // feature disabled in Brave
+   push_client_->AddObserver(this);
+   notifier::Subscription subscription;
+   subscription.channel = kChannelName;
+@@ -43,6 +44,7 @@ PushClientChannel::~PushClientChannel() {
+
+ void PushClientChannel::UpdateCredentials(
+     const std::string& email, const std::string& token) {
++  return; // feature disabled in Brave
+   net::NetworkTrafficAnnotationTag traffic_annotation =
+       net::DefineNetworkTrafficAnnotation("puch_client_channel", R"(
+         semantics {

test/BUILD.gn

@@ -66,6 +66,7 @@ test("brave_unit_tests") {
     "//brave/components/brave_sync/client/bookmark_change_processor_unittest.cc",
     "//brave/components/brave_webtorrent/browser/net/brave_torrent_redirect_network_delegate_helper_unittest.cc",
     "//brave/components/gcm_driver/gcm_unittest.cc",
+    "//brave/components/invalidation/push_client_channel_unittest.cc",
     "//brave/components/omnibox/browser/topsites_provider_unittest.cc",
     "//brave/components/spellcheck/spellcheck_unittest.cc",
     "//brave/third_party/libaddressinput/chromium/chrome_metadata_source_unittest.cc",