[AiS] Provide Answers queries with a session token.

chrome/browser/autocomplete/search_provider.h

Index: chrome/browser/autocomplete/search_provider.h
diff --git a/chrome/browser/autocomplete/search_provider.h b/chrome/browser/autocomplete/search_provider.h
index 90a3f96f2dc42d8ff0d7afdb2addf6a7ec2f1ae9..ea71862ad301fba78b0dfbdf14ca8d8418b00e89 100644
--- a/chrome/browser/autocomplete/search_provider.h
+++ b/chrome/browser/autocomplete/search_provider.h
@@ -64,6 +64,8 @@ class SearchProvider : public BaseSearchProvider {
   FRIEND_TEST_ALL_PREFIXES(SearchProviderTest, NavigationInlineDomainClassify);
   FRIEND_TEST_ALL_PREFIXES(SearchProviderTest, NavigationInlineSchemeSubstring);
   FRIEND_TEST_ALL_PREFIXES(SearchProviderTest, RemoveStaleResultsTest);
+  FRIEND_TEST_ALL_PREFIXES(SearchProviderTest, SessionToken);

[Peter Kasting, 2014/05/09 21:35:07]

Nit: List tests here in the same order as the test file

[groby-ooo-7-16, 2014/05/09 21:50:25]

Ah. I assumed alphabetical order.

[groby-ooo-7-16, 2014/05/09 22:18:09]

Done.

+  FRIEND_TEST_ALL_PREFIXES(SearchProviderTest, SuggestQueryUsesToken);
   FRIEND_TEST_ALL_PREFIXES(SearchProviderTest, SuggestRelevanceExperiment);
   FRIEND_TEST_ALL_PREFIXES(SearchProviderTest, TestDeleteMatch);
   FRIEND_TEST_ALL_PREFIXES(AutocompleteProviderTest, GetDestinationURL);
@@ -270,6 +272,9 @@ class SearchProvider : public BaseSearchProvider {
   // Updates the value of |done_| from the internal state.
   void UpdateDone();
 
+  // Obtain a session token, regenerating if necessary.

[Peter Kasting, 2014/05/09 21:35:07]

Nit: Obtains

[groby-ooo-7-16, 2014/05/09 22:18:09]

Done.

+  std::string GetSessionToken();
+
   // The amount of time to wait before sending a new suggest request after the
   // previous one.  Non-const because some unittests modify this value.
   static int kMinimumTimeBetweenSuggestQueriesMs;
@@ -304,6 +309,10 @@ class SearchProvider : public BaseSearchProvider {
 
   GURL current_page_url_;
 
+  // Session token management.
+  std::string current_token_;
+  base::Time token_expiration_time_;
+
   DISALLOW_COPY_AND_ASSIGN(SearchProvider);
 };