Provide a mechanism for the GCM driver to send message receipts to GCM.

components/gcm_driver/gcm_driver_desktop_unittest.cc

Index: components/gcm_driver/gcm_driver_desktop_unittest.cc
diff --git a/components/gcm_driver/gcm_driver_desktop_unittest.cc b/components/gcm_driver/gcm_driver_desktop_unittest.cc
index ef83a49532f4dd449f9394b7ff274b9101c4ac10..25430495484a01eb6a5a74f208dd89718e2c091a 100644
--- a/components/gcm_driver/gcm_driver_desktop_unittest.cc
+++ b/components/gcm_driver/gcm_driver_desktop_unittest.cc
@@ -41,6 +41,7 @@ namespace {
 
 const char kTestAppID1[] = "TestApp1";
 const char kTestAppID2[] = "TestApp2";
+const char kTestMessageID[] = "TestMessage1";
 const char kUserID1[] = "user1";
 const char kScope[] = "GCM";
 const char kInstanceID1[] = "IID1";
@@ -841,7 +842,7 @@ TEST_F(GCMDriverFunctionalTest, MessageReceived) {
   message.data["key1"] = "value1";
   message.data["key2"] = "value2";
   message.sender_id = "sender";
-  GetGCMClient()->ReceiveMessage(kTestAppID1, message);
+  GetGCMClient()->ReceiveMessage(kTestAppID1, kTestMessageID, message);
   gcm_app_handler()->WaitForNotification();
   EXPECT_EQ(FakeGCMAppHandler::MESSAGE_EVENT,
             gcm_app_handler()->received_event());
@@ -859,7 +860,7 @@ TEST_F(GCMDriverFunctionalTest, MessageWithCollapseKeyReceived) {
   message.data["key1"] = "value1";
   message.collapse_key = "collapse_key_value";
   message.sender_id = "sender";
-  GetGCMClient()->ReceiveMessage(kTestAppID1, message);
+  GetGCMClient()->ReceiveMessage(kTestAppID1, kTestMessageID, message);
   gcm_app_handler()->WaitForNotification();
   EXPECT_EQ(FakeGCMAppHandler::MESSAGE_EVENT,
             gcm_app_handler()->received_event());
@@ -883,7 +884,7 @@ TEST_F(GCMDriverFunctionalTest, EncryptedMessageReceivedError) {
   message.raw_data = "foobar";
 
   GetGCMClient()->SetRecording(true);
-  GetGCMClient()->ReceiveMessage(kTestAppID1, message);
+  GetGCMClient()->ReceiveMessage(kTestAppID1, kTestMessageID, message);
 
   PumpIOLoop();
   PumpUILoop();