Update legacy Tuple-using code.

chrome/renderer/spellchecker/spellcheck_provider_mac_unittest.cc

Index: chrome/renderer/spellchecker/spellcheck_provider_mac_unittest.cc
diff --git a/chrome/renderer/spellchecker/spellcheck_provider_mac_unittest.cc b/chrome/renderer/spellchecker/spellcheck_provider_mac_unittest.cc
index 5188d39aac2b452576edab333ab44260497e3369..15c26e310ec03ba98829a3382f04499112520d1f 100644
--- a/chrome/renderer/spellchecker/spellcheck_provider_mac_unittest.cc
+++ b/chrome/renderer/spellchecker/spellcheck_provider_mac_unittest.cc
@@ -23,7 +23,7 @@ void FakeMessageArrival(
   bool handled = provider->OnMessageReceived(
       SpellCheckMsg_RespondTextCheck(
           0,
-          parameters.b,
+          get<1>(parameters),
           fake_result));
   EXPECT_TRUE(handled);
 }
@@ -42,7 +42,7 @@ TEST_F(SpellCheckProviderMacTest, SingleRoundtripSuccess) {
   bool ok = SpellCheckHostMsg_RequestTextCheck::Read(
       provider_.messages_[0], &read_parameters1);
   EXPECT_TRUE(ok);
-  EXPECT_EQ(read_parameters1.c, base::UTF8ToUTF16("hello "));
+  EXPECT_EQ(get<2>(read_parameters1), base::UTF8ToUTF16("hello "));
 
   FakeMessageArrival(&provider_, read_parameters1);
   EXPECT_EQ(completion.completion_count_, 1U);
@@ -68,13 +68,13 @@ TEST_F(SpellCheckProviderMacTest, TwoRoundtripSuccess) {
   bool ok = SpellCheckHostMsg_RequestTextCheck::Read(
       provider_.messages_[0], &read_parameters1);
   EXPECT_TRUE(ok);
-  EXPECT_EQ(read_parameters1.c, base::UTF8ToUTF16("hello "));
+  EXPECT_EQ(get<2>(read_parameters1), base::UTF8ToUTF16("hello "));
 
   SpellCheckHostMsg_RequestTextCheck::Param read_parameters2;
   ok = SpellCheckHostMsg_RequestTextCheck::Read(
       provider_.messages_[1], &read_parameters2);
   EXPECT_TRUE(ok);
-  EXPECT_EQ(read_parameters2.c, base::UTF8ToUTF16("bye "));
+  EXPECT_EQ(get<2>(read_parameters2), base::UTF8ToUTF16("bye "));
 
   FakeMessageArrival(&provider_, read_parameters1);
   EXPECT_EQ(completion1.completion_count_, 1U);