Adds paste function to searchbox api and handles paste event on fakebox

chrome/browser/ui/search/instant_tab.cc

Index: chrome/browser/ui/search/instant_tab.cc
diff --git a/chrome/browser/ui/search/instant_tab.cc b/chrome/browser/ui/search/instant_tab.cc
index ef2500d8902faaddf152ed6576bbfb0dbd5e34e8..3112930d3ec0efa5416b384bd817daaad4331870 100644
--- a/chrome/browser/ui/search/instant_tab.cc
+++ b/chrome/browser/ui/search/instant_tab.cc
@@ -46,6 +46,10 @@ bool InstantTab::ShouldProcessNavigateToURL() {
   return true;
 }
 
+bool InstantTab::ShouldProcessPasteIntoOmnibox() {
+  return true;
+}
+
 bool InstantTab::ShouldProcessDeleteMostVisitedItem() {
   return true;
 }