diff --git a/common/mock_http_fetcher.cc b/common/mock_http_fetcher.cc
index d0348f1..f1ae72a 100644
--- a/common/mock_http_fetcher.cc
+++ b/common/mock_http_fetcher.cc
@@ -123,6 +123,13 @@
   extra_headers_[base::ToLowerASCII(header_name)] = header_value;
 }
 
+std::string MockHttpFetcher::GetHeader(const std::string& header_name) const {
+  const auto it = extra_headers_.find(base::ToLowerASCII(header_name));
+  if (it == extra_headers_.end())
+    return "";
+  return it->second;
+}
+
 void MockHttpFetcher::Pause() {
   CHECK(!paused_);
   paused_ = true;
diff --git a/common/mock_http_fetcher.h b/common/mock_http_fetcher.h
index e56318e..367802e 100644
--- a/common/mock_http_fetcher.h
+++ b/common/mock_http_fetcher.h
@@ -91,6 +91,10 @@
   void SetHeader(const std::string& header_name,
                  const std::string& header_value) override;
 
+  // Return the value of the header |header_name| or the empty string if not
+  // set.
+  std::string GetHeader(const std::string& header_name) const;
+
   // Suspend the mock transfer.
   void Pause() override;
 
diff --git a/omaha_request_action.cc b/omaha_request_action.cc
index 7f18cc4..a9143a8 100644
--- a/omaha_request_action.cc
+++ b/omaha_request_action.cc
@@ -77,6 +77,11 @@
 
 static const char* kOmahaUpdaterVersion = "0.1.0.0";
 
+// X-GoogleUpdate headers.
+static const char* kXGoogleUpdateInteractivity = "X-GoogleUpdate-Interactivity";
+static const char* kXGoogleUpdateAppId = "X-GoogleUpdate-AppId";
+static const char* kXGoogleUpdateUpdater = "X-GoogleUpdate-Updater";
+
 // updatecheck attributes (without the underscore prefix).
 static const char* kEolAttr = "eol";
 
@@ -649,6 +654,15 @@
                                     GetInstallDate(system_state_),
                                     system_state_));
 
+  // Set X-GoogleUpdate headers.
+  http_fetcher_->SetHeader(kXGoogleUpdateInteractivity,
+                           params_->interactive() ? "fg" : "bg");
+  http_fetcher_->SetHeader(kXGoogleUpdateAppId, params_->GetAppId());
+  http_fetcher_->SetHeader(
+      kXGoogleUpdateUpdater,
+      base::StringPrintf(
+          "%s-%s", constants::kOmahaUpdaterID, kOmahaUpdaterVersion));
+
   http_fetcher_->SetPostData(request_post.data(), request_post.size(),
                              kHttpContentTypeTextXml);
   LOG(INFO) << "Posting an Omaha request to " << params_->update_url();
diff --git a/omaha_request_action_unittest.cc b/omaha_request_action_unittest.cc
index 82f9ae8..9291e05 100644
--- a/omaha_request_action_unittest.cc
+++ b/omaha_request_action_unittest.cc
@@ -458,6 +458,31 @@
   EXPECT_FALSE(fake_prefs_.Exists(kPrefsOmahaCohortName));
 }
 
+TEST_F(OmahaRequestActionTest, ExtraHeadersSentTest) {
+  const string http_response = "<?xml invalid response";
+  request_params_.set_interactive(true);
+
+  brillo::FakeMessageLoop loop(nullptr);
+  loop.SetAsCurrent();
+
+  MockHttpFetcher* fetcher =
+      new MockHttpFetcher(http_response.data(), http_response.size(), nullptr);
+  OmahaRequestAction action(
+      &fake_system_state_, nullptr, brillo::make_unique_ptr(fetcher), false);
+  ActionProcessor processor;
+  processor.EnqueueAction(&action);
+
+  loop.PostTask(base::Bind([&processor] { processor.StartProcessing(); }));
+  loop.Run();
+  EXPECT_FALSE(loop.PendingTasks());
+
+  // Check that the headers were set in the fetcher during the action. Note that
+  // we set this request as "interactive".
+  EXPECT_EQ("fg", fetcher->GetHeader("X-GoogleUpdate-Interactivity"));
+  EXPECT_EQ(kTestAppId, fetcher->GetHeader("X-GoogleUpdate-AppId"));
+  EXPECT_NE("", fetcher->GetHeader("X-GoogleUpdate-Updater"));
+}
+
 TEST_F(OmahaRequestActionTest, ValidUpdateBlockedByConnection) {
   OmahaResponse response;
   // Set up a connection manager that doesn't allow a valid update over