Disable flaky browser_test: GcdPrivateWithMdnsAPITest.DeviceInfo

chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc

Index: chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc
diff --git a/chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc b/chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc
index dde5f15f4974fe8805ceda1da4b782a1d8def0b3..52a68209bf6802466bbbeed4df01e8218f520971 100644
--- a/chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc
+++ b/chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc
@@ -142,7 +142,8 @@ class GcdPrivateWithMdnsAPITest : public GcdPrivateAPITest {
       test_service_discovery_client_;
 };
 
-IN_PROC_BROWSER_TEST_F(GcdPrivateWithMdnsAPITest, DeviceInfo) {
+// Flaky on Linux(dbg). https://crbug.com/689305
+IN_PROC_BROWSER_TEST_F(GcdPrivateWithMdnsAPITest, DISABLED_DeviceInfo) {
   test_service_discovery_client_->SimulateReceive(kAnnouncePacket,
                                                   sizeof(kAnnouncePacket));
   url_fetcher_factory_.SetFakeResponse(GURL("http://1.2.3.4:8888/privet/info"),