Handle Esc key press event in Local NTP.

chrome/renderer/searchbox/searchbox.cc

Index: chrome/renderer/searchbox/searchbox.cc
diff --git a/chrome/renderer/searchbox/searchbox.cc b/chrome/renderer/searchbox/searchbox.cc
index 604fa169bbd8a1fd69074e42a7c4beb9f7ca2d1f..d72a60cb974e1980cc468d7c80dacee9f005c40e 100644
--- a/chrome/renderer/searchbox/searchbox.cc
+++ b/chrome/renderer/searchbox/searchbox.cc
@@ -196,6 +196,7 @@ bool SearchBox::OnMessageReceived(const IPC::Message& message) {
                         OnAutocompleteResults)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxUpOrDownKeyPressed,
                         OnUpOrDownKeyPressed)
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxEscKeyPressed, OnEscKeyPressed)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxCancelSelection,
                         OnCancelSelection)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxSetDisplayInstantResults,
@@ -330,6 +331,14 @@ void SearchBox::OnUpOrDownKeyPressed(int count) {
   }
 }
 
+void SearchBox::OnEscKeyPressed() {
+  if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
+    DVLOG(1) << render_view() << " OnEscKeyPressed ";
+    extensions_v8::SearchBoxExtension::DispatchEscKeyPress(
+        render_view()->GetWebView()->mainFrame());
+  }
+}
+
 void SearchBox::OnCancelSelection(const string16& query,
                                   bool verbatim,
                                   size_t selection_start,