Add queryForNewLocalDevices to gcdPrivate

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 35967120dda53aa11892a3799d0f8960a83c10d2..1476f24d1ef6c92c464fdd598efb0ea5afb95833 100644
--- a/chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc
+++ b/chrome/browser/extensions/api/gcd_private/gcd_private_apitest.cc
@@ -138,6 +138,22 @@ const uint8 kGoodbyePacket[] = {
     'o',  'c',  'a',  'l',  0x00,
 };
 
+const uint8 kQueryPacket[] = {
+    // Header
+    0x00, 0x00,  // ID is zeroed out
+    0x00, 0x00,  // No flags.
+    0x00, 0x01,  // One question.
+    0x00, 0x00,  // 0 RRs (answers)
+    0x00, 0x00,  // 0 authority RRs
+    0x00, 0x00,  // 0 additional RRs
+
+    // Question
+    // This part is echoed back from the respective query.
+    0x07, '_',  'p', 'r', 'i', 'v', 'e', 't',  0x04, '_',  't', 'c',
+    'p',  0x05, 'l', 'o', 'c', 'a', 'l', 0x00, 0x00, 0x0c,  // TYPE is PTR.
+    0x00, 0x01,                                             // CLASS is IN.
+};
+
 #endif  // ENABLE_MDNS
 
 // Sentinel value to signify the request should fail.
@@ -308,6 +324,14 @@ IN_PROC_BROWSER_TEST_F(GcdPrivateAPITest, AddRemove) {
   EXPECT_TRUE(RunExtensionSubtest("gcd_private/api", "remove_device.html"));
 }
 
+IN_PROC_BROWSER_TEST_F(GcdPrivateAPITest, SendQuery) {
+  EXPECT_CALL(*test_service_discovery_client_,
+              OnSendTo(std::string(reinterpret_cast<const char*>(kQueryPacket),
+                                   sizeof(kQueryPacket)))).Times(2);
+
+  EXPECT_TRUE(RunExtensionSubtest("gcd_private/api", "send_query.html"));
+}
+
 #endif  // ENABLE_MDNS
 
 #if defined(ENABLE_WIFI_BOOTSTRAPPING)
@@ -331,6 +355,7 @@ IN_PROC_BROWSER_TEST_F(GcdPrivateAPITest, WifiAddRemove) {
   EXPECT_TRUE(
       RunExtensionSubtest("gcd_private/api", "remove_wifi_device.html"));
 }
+
 #endif
 
 }  // namespace