Add title to current page in zero suggest.

components/omnibox/browser/history_url_provider.cc

Index: components/omnibox/browser/history_url_provider.cc
diff --git a/components/omnibox/browser/history_url_provider.cc b/components/omnibox/browser/history_url_provider.cc
index b65ee725e3a72ce6b9b2fed8625a470c0a645cd0..f57fd7ab055df38c799b83ed7fa022f072e8a9e3 100644
--- a/components/omnibox/browser/history_url_provider.cc
+++ b/components/omnibox/browser/history_url_provider.cc
@@ -8,6 +8,7 @@
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/feature_list.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
@@ -616,7 +617,12 @@ AutocompleteMatch HistoryURLProvider::SuggestExactInput(
           &match.contents_class);
     }
   }
-
+  if (base::FeatureList::IsEnabled(omnibox::kDisplayTitleForCurrentUrl)) {

[Mark P, 2017/04/12 05:07:56]

I don't this this is right.  SuggestExactInput can be called on things like
user input = "http://foo.com", even if the user is currently on
"http://bar.com".  We don't want to display bar.com's title on foo.com".

I think I was wrong when I suggested pushing this code all the way into
SuggestExactInput.  VerbatimMatchForURL() I guess is the right place in the
hierarchy.  (It must be, as we've now looked at two of the three possibilities!)
 Sorry for giving bad advice on my previous review.

[gcomanici, 2017/04/12 16:16:30]

Done.

+    match.description = input.current_title();
+    AutocompleteMatch::ClassifyLocationInString(
+        base::string16::npos, 0, match.description.length(),
+        ACMatchClassification::NONE, &match.description_class);
+  }
   return match;
 }