Instant API: tell page whether the browser is capturing key strokes.

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 114fa28f0641ec631fb096577fe9527dd1266eb0..a8e208ba2f339618d0a28ea6aa1b424a0c2468bd 100644
--- a/chrome/renderer/searchbox/searchbox.cc
+++ b/chrome/renderer/searchbox/searchbox.cc
@@ -109,6 +109,8 @@ bool SearchBox::OnMessageReceived(const IPC::Message& message) {
                         OnAutocompleteResults)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxUpOrDownKeyPressed,
                         OnUpOrDownKeyPressed)
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxKeyCaptureChanged,
+                        OnKeyCaptureChange)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxModeChanged,
                         OnModeChanged)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxThemeChanged,
@@ -190,6 +192,14 @@ void SearchBox::OnUpOrDownKeyPressed(int count) {
   }
 }
 
+void SearchBox::OnKeyCaptureChange(bool is_key_capture_enabled) {
+  is_key_capture_enabled_ = is_key_capture_enabled;
+  if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
+    extensions_v8::SearchBoxExtension::DispatchKeyCaptureChange(
+        render_view()->GetWebView()->mainFrame());
+  }
+}
+
 void SearchBox::OnModeChanged(const chrome::search::Mode& mode) {
   mode_ = mode;
   if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
@@ -222,6 +232,7 @@ void SearchBox::Reset() {
   results_base_ = 0;
   rect_ = gfx::Rect();
   autocomplete_results_.clear();
+  is_key_capture_enabled_ = false;
   mode_ = chrome::search::Mode();
   theme_info_ = ThemeBackgroundInfo();
   theme_area_height_ = 0;