Rename X-GoogleUpdate headers.

Bug: 28823234
Test: mma
Change-Id: I8fd87aeb7b58dea69fb755f8f1575a5841772960
diff --git a/omaha_request_action_unittest.cc b/omaha_request_action_unittest.cc
index 2f466dd..6bc5ba2 100644
--- a/omaha_request_action_unittest.cc
+++ b/omaha_request_action_unittest.cc
@@ -748,9 +748,9 @@
 
   // 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"));
+  EXPECT_EQ("fg", fetcher->GetHeader("X-Goog-Update-Interactivity"));
+  EXPECT_EQ(kTestAppId, fetcher->GetHeader("X-Goog-Update-AppId"));
+  EXPECT_NE("", fetcher->GetHeader("X-Goog-Update-Updater"));
 }
 
 TEST_F(OmahaRequestActionTest, ValidUpdateBlockedByConnection) {