Send URLs on non-zero prefix suggest requests also.

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 5993a46e73f72356e40ec1a5d1331533dcb6b1b1..4a3a42ec1cdb0caff7d380c75f8d810b42774eb9 100644
--- a/chrome/browser/autocomplete/search_provider.h
+++ b/chrome/browser/autocomplete/search_provider.h
@@ -106,6 +106,11 @@ class SearchProvider : public AutocompleteProvider,
     return field_trial_triggered_in_session_;
   }
 
+  // This URL may be sent with suggest requests; see comments on CanSendURL().
+  void set_current_page_url(const GURL& url) {

[Peter Kasting, 2013/10/08 01:10:25]

Tiny nit: Name the arg |current_page_url|

[H Fung, 2013/10/30 23:56:15]

Done.

+    current_page_url_ = url;
+  }
+
  private:
   // TODO(hfung): Remove ZeroSuggestProvider as a friend class after
   // refactoring common code to a new base class.
@@ -492,6 +497,14 @@ class SearchProvider : public AutocompleteProvider,
   // Updates the value of |done_| from the internal state.
   void UpdateDone();
 
+  // Whether the URL can be sent in the suggest request.  Don't send the URL of
+  // non-Google HTTPS requests because it may contain sensitive information.

[Peter Kasting, 2013/10/08 01:10:25]

Nit: This sentence is kinda redundant with the ones below and should probably
just be removed.

[H Fung, 2013/10/30 23:56:15]

Done.

+  // Don't allow incognito, if suggest is disabled, if they don't have

[Peter Kasting, 2013/10/08 01:10:25]

Nit: incognito -> if Chrome is incognito?

[H Fung, 2013/10/30 23:56:15]

Done.

+  // unencrypted tab sync enabled, or if Google is not their search provider.

[Peter Kasting, 2013/10/08 01:10:25]

Nit: their -> the user's

[H Fung, 2013/10/30 23:56:15]

Done.

+  // Checking that the user is in a field trial is done elsewhere.

[Peter Kasting, 2013/10/08 01:10:25]

This line seems to be false now.

[H Fung, 2013/10/30 23:56:15]

Done.

+  static bool CanSendURL(const GURL& url, const TemplateURL* template_url,

[Peter Kasting, 2013/10/08 01:10:25]

Nit: One arg per line

[H Fung, 2013/10/30 23:56:15]

Done.

+                         Profile* profile);
+
   // 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;
@@ -561,6 +574,8 @@ class SearchProvider : public AutocompleteProvider,
   // they will not be inlined.
   bool prevent_search_history_inlining_;
 
+  GURL current_page_url_;
+
   DISALLOW_COPY_AND_ASSIGN(SearchProvider);
 };