Makes instant support other open dispositions.

chrome/browser/tab_contents/match_preview.h

Index: chrome/browser/tab_contents/match_preview.h
diff --git a/chrome/browser/tab_contents/match_preview.h b/chrome/browser/tab_contents/match_preview.h
index 0adbe57fd021cd726a26d411f6675993056bc9a4..4b1fd12d5f00bc19093cc5503548e84fe52a71f3 100644
--- a/chrome/browser/tab_contents/match_preview.h
+++ b/chrome/browser/tab_contents/match_preview.h
@@ -84,6 +84,11 @@ class MatchPreview {
   // may return false yet preview_contents() returns non-NULL.
   bool is_active() const { return is_active_; }
 
+  // Returns the transition type of the last AutocompleteMatch passed to Update.
+  PageTransition::Type last_transition_type() const {
+    return last_transition_type_;
+  }
+
   const GURL& url() const { return url_; }
 
  private:
@@ -149,6 +154,9 @@ class MatchPreview {
 
   scoped_ptr<FrameLoadObserver> frame_load_observer_;
 
+  // See description above getter.
+  PageTransition::Type last_transition_type_;
+
   DISALLOW_COPY_AND_ASSIGN(MatchPreview);
 };