Upstream rewrite of Instant.

chrome/common/instant_types.h

Index: chrome/common/instant_types.h
diff --git a/chrome/common/instant_types.h b/chrome/common/instant_types.h
index 46638f92b879eed307eddf7950f174b7638b51ed..543e7221f789be387bca48d51772bded99afcfaf 100644
--- a/chrome/common/instant_types.h
+++ b/chrome/common/instant_types.h
@@ -5,16 +5,20 @@
 #ifndef CHROME_COMMON_INSTANT_TYPES_H_
 #define CHROME_COMMON_INSTANT_TYPES_H_
 
-// Enum describing the ways instant suggest text can be completed.
+#include <string>
+
+// Ways that the Instant suggested text is autocompleted into the omnibox.
 enum InstantCompleteBehavior {
-  // Complete the suggestion now.
+  // Autocomplete the suggestion immediately.
   INSTANT_COMPLETE_NOW,
 
-  // Complete the suggestion after a delay.
+  // Autocomplete the suggestion after a delay.
   INSTANT_COMPLETE_DELAYED,
 
-  // Never complete the suggestion.
-  INSTANT_COMPLETE_NEVER
+  // Do not autocomplete the suggestion. The suggestion may still be displayed
+  // in the omnibox, but not made a part of the omnibox text by default (e.g.,
+  // by displaying the suggestion as non-highlighted, non-selected gray text).
+  INSTANT_COMPLETE_NEVER,
 };
 
 #endif  // CHROME_COMMON_INSTANT_TYPES_H_