Add the navigation redirect-chain to Sync sessions proto for offline analysis.

android_webview/native/state_serializer_unittests.cc

Index: android_webview/native/state_serializer_unittests.cc
diff --git a/android_webview/native/state_serializer_unittests.cc b/android_webview/native/state_serializer_unittests.cc
index 02179521f83e5984dc35a1ec18d3fe7c9800a3fd..5649145b2ef65ad4b33a760130e5990c1ef43fb0 100644
--- a/android_webview/native/state_serializer_unittests.cc
+++ b/android_webview/native/state_serializer_unittests.cc
@@ -55,6 +55,8 @@ TEST(AndroidWebViewStateSerializerTest, TestNavigationEntrySerialization) {
   const bool is_overriding_user_agent = true;
   const base::Time timestamp = base::Time::FromInternalValue(12345);
   const int http_status_code = 404;
+  const GURL redirect_0("http://redirect_0");
+  const GURL redirect_1("http://redirect_1");
 
   entry->SetURL(url);
   entry->SetVirtualURL(virtual_url);
@@ -67,6 +69,11 @@ TEST(AndroidWebViewStateSerializerTest, TestNavigationEntrySerialization) {
   entry->SetIsOverridingUserAgent(is_overriding_user_agent);
   entry->SetTimestamp(timestamp);
   entry->SetHttpStatusCode(http_status_code);
+  std::vector<GURL> redirects;
+  redirects.push_back(redirect_0);
+  redirects.push_back(redirect_1);
+  redirects.push_back(virtual_url);
+  entry->SetRedirectChain(redirects);
 
   Pickle pickle;
   bool result = internal::WriteNavigationEntryToPickle(*entry, &pickle);
@@ -89,6 +96,10 @@ TEST(AndroidWebViewStateSerializerTest, TestNavigationEntrySerialization) {
   EXPECT_EQ(is_overriding_user_agent, copy->GetIsOverridingUserAgent());
   EXPECT_EQ(timestamp, copy->GetTimestamp());
   EXPECT_EQ(http_status_code, copy->GetHttpStatusCode());
+  EXPECT_EQ(3U, copy->GetRedirectChain().size());
+  EXPECT_EQ(redirect_0, copy->GetRedirectChain().at(0));
+  EXPECT_EQ(redirect_1, copy->GetRedirectChain().at(1));
+  EXPECT_EQ(virtual_url, copy->GetRedirectChain().at(2));
 }
 
 }  // namespace android_webview