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..b01181fef31e78e16b8d67a6867874abdf05e5d2 100644
--- a/chrome/renderer/searchbox/searchbox.cc
+++ b/chrome/renderer/searchbox/searchbox.cc
@@ -109,6 +109,10 @@ bool SearchBox::OnMessageReceived(const IPC::Message& message) {
                         OnAutocompleteResults)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxUpOrDownKeyPressed,
                         OnUpOrDownKeyPressed)
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxStartedCapturingKeyStrokes,
+                        OnStartedCapturingKeyStrokes)
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxStoppedCapturingKeyStrokes,
+                        OnStoppedCapturingKeyStrokes)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxModeChanged,
                         OnModeChanged)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxThemeChanged,
@@ -190,6 +194,22 @@ void SearchBox::OnUpOrDownKeyPressed(int count) {
   }
 }
 
+void SearchBox::OnStartedCapturingKeyStrokes() {
+  capturing_key_strokes_ = true;
+  if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
+    extensions_v8::SearchBoxExtension::DispatchKeyStrokeCapturingModeChange(
+        render_view()->GetWebView()->mainFrame());
+  }
+}
+
+void SearchBox::OnStoppedCapturingKeyStrokes() {
+  capturing_key_strokes_ = false;
+  if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
+    extensions_v8::SearchBoxExtension::DispatchKeyStrokeCapturingModeChange(
+        render_view()->GetWebView()->mainFrame());
+  }
+}
+
 void SearchBox::OnModeChanged(const chrome::search::Mode& mode) {
   mode_ = mode;
   if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
@@ -222,6 +242,7 @@ void SearchBox::Reset() {
   results_base_ = 0;
   rect_ = gfx::Rect();
   autocomplete_results_.clear();
+  capturing_key_strokes_ = false;
   mode_ = chrome::search::Mode();
   theme_info_ = ThemeBackgroundInfo();
   theme_area_height_ = 0;