Fixing ESC in instant-extended.

chrome/browser/instant/instant_controller.cc

Index: chrome/browser/instant/instant_controller.cc
diff --git a/chrome/browser/instant/instant_controller.cc b/chrome/browser/instant/instant_controller.cc
index 80f9b796a4cf181a57ac371c9af2bab3abe1c1df..972415b5fa70cc1fd1aa3ae1107b47c9f0419db1 100644
--- a/chrome/browser/instant/instant_controller.cc
+++ b/chrome/browser/instant/instant_controller.cc
@@ -509,6 +509,27 @@ bool InstantController::OnUpOrDownKeyPressed(int count) {
   return true;
 }
 
+void InstantController::OnCancel(const AutocompleteMatch& match,
+                                 const string16& full_text) {
+  if (!extended_enabled_)
+    return;
+
+  if (!instant_tab_ && !overlay_)
+    return;
+
+  // We manually reset the state here since the JS is not expected to do it.
+  // TODO(sreeram): Handle the case where user_text is now a URL
+  last_match_was_search_ = AutocompleteMatch::IsSearchType(match.type) &&
+                           !full_text.empty();
+  last_omnibox_text_ = full_text;
+  last_suggestion_ = InstantSuggestion();
+
+  if (instant_tab_)
+    instant_tab_->CancelSelection(full_text);
+  else
+    overlay_->CancelSelection(full_text);
+}
+
 content::WebContents* InstantController::GetPreviewContents() const {
   return overlay_ ? overlay_->contents() : NULL;
 }
@@ -522,7 +543,6 @@ bool InstantController::IsPreviewingSearchResults() const {
 bool InstantController::CommitIfPossible(InstantCommitType type) {
   if (!extended_enabled_ && !instant_enabled_)
     return false;
-

[sreeram, 2013/02/14 17:56:41]

Nit: Don't remove this blank line.

   LOG_INSTANT_DEBUG_EVENT(this, base::StringPrintf(
       "CommitIfPossible: type=%d last_omnibox_text_='%s' "
       "last_match_was_search_=%d instant_tab_=%d", type,