[AiS] Add a new AutocompleteMatchType for Answers in Suggest.

chrome/browser/autocomplete/autocomplete_match.cc

Index: chrome/browser/autocomplete/autocomplete_match.cc
diff --git a/chrome/browser/autocomplete/autocomplete_match.cc b/chrome/browser/autocomplete/autocomplete_match.cc
index 6911e44bd07ac8a03ee2715575240a3b4e46e422..0d101c86719d61a8a17356465ad66c7ae736add2 100644
--- a/chrome/browser/autocomplete/autocomplete_match.cc
+++ b/chrome/browser/autocomplete/autocomplete_match.cc
@@ -157,6 +157,7 @@ int AutocompleteMatch::TypeToIcon(Type type) {
     IDR_OMNIBOX_SEARCH,
     IDR_OMNIBOX_HTTP,
     IDR_OMNIBOX_HTTP,
+    IDR_OMNIBOX_SEARCH,
   };
   COMPILE_ASSERT(arraysize(icons) == AutocompleteMatchType::NUM_TYPES,
                  icons_array_must_match_type_enum);
@@ -339,7 +340,8 @@ bool AutocompleteMatch::IsSpecializedSearchType(Type type) {
   return type == AutocompleteMatchType::SEARCH_SUGGEST_ENTITY ||
          type == AutocompleteMatchType::SEARCH_SUGGEST_INFINITE ||
          type == AutocompleteMatchType::SEARCH_SUGGEST_PERSONALIZED ||
-         type == AutocompleteMatchType::SEARCH_SUGGEST_PROFILE;
+         type == AutocompleteMatchType::SEARCH_SUGGEST_PROFILE ||
+         type == AutocompleteMatchType::SEARCH_SUGGEST_ANSWER;

[Peter Kasting, 2014/06/10 21:49:46]

The effect of putting this here will be that the ShortcutsProvider, on seeing
the user hit enter on one of these matches, will instead create a shortcut entry
for a standard search that uses the search terms that triggered this match.

In other words, if I type in "foo", and I get an Answer, and I hit enter on it,
from the ShortcutsProvider perspective this will be treated like I did a search
for "foo".

I don't know whether this is what you want or not.

[Justin Donnelly, 2014/06/11 15:51:53]

Well, hitting enter on an Answer for "foo" will, in fact, search for "foo" so
this might be what I want.  But what's the alternative?  In other words, what's
the effect of putting the raw match into the shortcuts backend?

[Peter Kasting, 2014/06/11 17:02:02]

The alternative is that you get back a match exactly like the one that went it. 
So, I type "foo", I get an Answer, I hit enter on it, it searches for "foo". 
Now the next time I type "f", the shortcuts system returns the "Answer for foo"
match.

With the other specialized search results we've decided this isn't really what
we want, that instead, the act of "hitting enter on this means search for foo"
should result in the shortcuts system promoting "search for foo" in the future. 
I think that's probably appropriate for you as well.

 }
 
 void AutocompleteMatch::ComputeStrippedDestinationURL(Profile* profile) {