Update legacy Tuple-using code.

chrome/browser/ui/search/search_ipc_router_unittest.cc

Index: chrome/browser/ui/search/search_ipc_router_unittest.cc
diff --git a/chrome/browser/ui/search/search_ipc_router_unittest.cc b/chrome/browser/ui/search/search_ipc_router_unittest.cc
index 8c09eb96c0358749c8cf2c22a7645747078de63c..81096d02aa49cd084e8b28a37e24ed6b764dd730 100644
--- a/chrome/browser/ui/search/search_ipc_router_unittest.cc
+++ b/chrome/browser/ui/search/search_ipc_router_unittest.cc
@@ -160,10 +160,10 @@ class SearchIPCRouterTest : public BrowserWithTestWindowTest {
     const IPC::Message* message = process()->sink().GetFirstMessageMatching(
         ChromeViewMsg_SearchBoxSetDisplayInstantResults::ID);
     EXPECT_NE(static_cast<const IPC::Message*>(NULL), message);
-    Tuple1<bool> display_instant_results_param;
+    Tuple<bool> display_instant_results_param;
     ChromeViewMsg_SearchBoxSetDisplayInstantResults::Read(
         message, &display_instant_results_param);
-    EXPECT_EQ(expected_param_value, display_instant_results_param.a);
+    EXPECT_EQ(expected_param_value, get<0>(display_instant_results_param));
   }
 
   MockSearchIPCRouterDelegate* mock_delegate() { return &delegate_; }